Home / 16,402.72-22,642.88-11,365.92

Finding the Fourth Proportional to 16,402.72, 22,642.88 and 11,365.92

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Solution

The fourth proportional to 16,402.72, 22,642.88 and 11,365.92 is: 15,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,402.72 : 22,642.88 = 11,365.92 : x
  2. Step 2: Convert to fraction form
    16,402.72/22,642.88 = 11,365.92/x
  3. Step 3: Cross multiply
    16,402.72x = 22,642.88 × 11,365.92
  4. Step 4: Simplify right side
    16,402.72x = 257,357,162.65
  5. Step 5: Solve for x
    x = 257,357,162.65/16,402.72
  6. Step 6: Final answer
    x = 15,689.91

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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.