Home / 15,302.57-21,116.90-8,588.75

Finding the Fourth Proportional to 15,302.57, 21,116.90 and 8,588.75

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Solution

The fourth proportional to 15,302.57, 21,116.90 and 8,588.75 is: 11,852.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,302.57 : 21,116.90 = 8,588.75 : x
  2. Step 2: Convert to fraction form
    15,302.57/21,116.90 = 8,588.75/x
  3. Step 3: Cross multiply
    15,302.57x = 21,116.90 × 8,588.75
  4. Step 4: Simplify right side
    15,302.57x = 181,367,690.76
  5. Step 5: Solve for x
    x = 181,367,690.76/15,302.57
  6. Step 6: Final answer
    x = 11,852.11

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Half scale
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Double scale
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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.