Home / 15,365.29-21,204.50-8,651.16

Finding the Fourth Proportional to 15,365.29, 21,204.50 and 8,651.16

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Solution

The fourth proportional to 15,365.29, 21,204.50 and 8,651.16 is: 11,938.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.29 : 21,204.50 = 8,651.16 : x
  2. Step 2: Convert to fraction form
    15,365.29/21,204.50 = 8,651.16/x
  3. Step 3: Cross multiply
    15,365.29x = 21,204.50 × 8,651.16
  4. Step 4: Simplify right side
    15,365.29x = 183,443,478.96
  5. Step 5: Solve for x
    x = 183,443,478.96/15,365.29
  6. Step 6: Final answer
    x = 11,938.83

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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.