Home / 15,644.22-21,588.48-8,570.76

Finding the Fourth Proportional to 15,644.22, 21,588.48 and 8,570.76

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Solution

The fourth proportional to 15,644.22, 21,588.48 and 8,570.76 is: 11,827.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,644.22 : 21,588.48 = 8,570.76 : x
  2. Step 2: Convert to fraction form
    15,644.22/21,588.48 = 8,570.76/x
  3. Step 3: Cross multiply
    15,644.22x = 21,588.48 × 8,570.76
  4. Step 4: Simplify right side
    15,644.22x = 185,029,680.84
  5. Step 5: Solve for x
    x = 185,029,680.84/15,644.22
  6. Step 6: Final answer
    x = 11,827.35

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Half scale
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Double scale
Find fourth proportional to 15,645.22, 21,589.86 and 8,571.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.