Home / 15,532.76-21,434.42-8,459.03

Finding the Fourth Proportional to 15,532.76, 21,434.42 and 8,459.03

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Solution

The fourth proportional to 15,532.76, 21,434.42 and 8,459.03 is: 11,673.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.76 : 21,434.42 = 8,459.03 : x
  2. Step 2: Convert to fraction form
    15,532.76/21,434.42 = 8,459.03/x
  3. Step 3: Cross multiply
    15,532.76x = 21,434.42 × 8,459.03
  4. Step 4: Simplify right side
    15,532.76x = 181,314,476.55
  5. Step 5: Solve for x
    x = 181,314,476.55/15,532.76
  6. Step 6: Final answer
    x = 11,673.03

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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.