Home / 15,646.85-21,592.55-8,476.61

Finding the Fourth Proportional to 15,646.85, 21,592.55 and 8,476.61

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Solution

The fourth proportional to 15,646.85, 21,592.55 and 8,476.61 is: 11,697.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,646.85 : 21,592.55 = 8,476.61 : x
  2. Step 2: Convert to fraction form
    15,646.85/21,592.55 = 8,476.61/x
  3. Step 3: Cross multiply
    15,646.85x = 21,592.55 × 8,476.61
  4. Step 4: Simplify right side
    15,646.85x = 183,031,474.91
  5. Step 5: Solve for x
    x = 183,031,474.91/15,646.85
  6. Step 6: Final answer
    x = 11,697.66

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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.