Home / 15,516.12-21,406.50-9,468.66

Finding the Fourth Proportional to 15,516.12, 21,406.50 and 9,468.66

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Solution

The fourth proportional to 15,516.12, 21,406.50 and 9,468.66 is: 13,063.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,516.12 : 21,406.50 = 9,468.66 : x
  2. Step 2: Convert to fraction form
    15,516.12/21,406.50 = 9,468.66/x
  3. Step 3: Cross multiply
    15,516.12x = 21,406.50 × 9,468.66
  4. Step 4: Simplify right side
    15,516.12x = 202,690,870.29
  5. Step 5: Solve for x
    x = 202,690,870.29/15,516.12
  6. Step 6: Final answer
    x = 13,063.24

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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.