Home / 15,536.28-21,439.71-8,462.55

Finding the Fourth Proportional to 15,536.28, 21,439.71 and 8,462.55

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Solution

The fourth proportional to 15,536.28, 21,439.71 and 8,462.55 is: 11,678.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,536.28 : 21,439.71 = 8,462.55 : x
  2. Step 2: Convert to fraction form
    15,536.28/21,439.71 = 8,462.55/x
  3. Step 3: Cross multiply
    15,536.28x = 21,439.71 × 8,462.55
  4. Step 4: Simplify right side
    15,536.28x = 181,434,617.86
  5. Step 5: Solve for x
    x = 181,434,617.86/15,536.28
  6. Step 6: Final answer
    x = 11,678.12

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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.