Home / 15,576.35-21,498.15-9,289.13

Finding the Fourth Proportional to 15,576.35, 21,498.15 and 9,289.13

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Solution

The fourth proportional to 15,576.35, 21,498.15 and 9,289.13 is: 12,820.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,576.35 : 21,498.15 = 9,289.13 : x
  2. Step 2: Convert to fraction form
    15,576.35/21,498.15 = 9,289.13/x
  3. Step 3: Cross multiply
    15,576.35x = 21,498.15 × 9,289.13
  4. Step 4: Simplify right side
    15,576.35x = 199,699,110.11
  5. Step 5: Solve for x
    x = 199,699,110.11/15,576.35
  6. Step 6: Final answer
    x = 12,820.66

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Half scale
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Double scale
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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.