Home / 15,586.18-21,532.46-10,221.42

Finding the Fourth Proportional to 15,586.18, 21,532.46 and 10,221.42

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Solution

The fourth proportional to 15,586.18, 21,532.46 and 10,221.42 is: 14,120.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586.18 : 21,532.46 = 10,221.42 : x
  2. Step 2: Convert to fraction form
    15,586.18/21,532.46 = 10,221.42/x
  3. Step 3: Cross multiply
    15,586.18x = 21,532.46 × 10,221.42
  4. Step 4: Simplify right side
    15,586.18x = 220,092,317.29
  5. Step 5: Solve for x
    x = 220,092,317.29/15,586.18
  6. Step 6: Final answer
    x = 14,120.99

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Half scale
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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.