Home / 15,686.46-21,651.71-10,587.92

Finding the Fourth Proportional to 15,686.46, 21,651.71 and 10,587.92

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Solution

The fourth proportional to 15,686.46, 21,651.71 and 10,587.92 is: 14,614.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686.46 : 21,651.71 = 10,587.92 : x
  2. Step 2: Convert to fraction form
    15,686.46/21,651.71 = 10,587.92/x
  3. Step 3: Cross multiply
    15,686.46x = 21,651.71 × 10,587.92
  4. Step 4: Simplify right side
    15,686.46x = 229,246,412.15
  5. Step 5: Solve for x
    x = 229,246,412.15/15,686.46
  6. Step 6: Final answer
    x = 14,614.29

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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.