Home / 15,872.42-21,898.96-9,157.19

Finding the Fourth Proportional to 15,872.42, 21,898.96 and 9,157.19

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Solution

The fourth proportional to 15,872.42, 21,898.96 and 9,157.19 is: 12,634.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,872.42 : 21,898.96 = 9,157.19 : x
  2. Step 2: Convert to fraction form
    15,872.42/21,898.96 = 9,157.19/x
  3. Step 3: Cross multiply
    15,872.42x = 21,898.96 × 9,157.19
  4. Step 4: Simplify right side
    15,872.42x = 200,532,805.13
  5. Step 5: Solve for x
    x = 200,532,805.13/15,872.42
  6. Step 6: Final answer
    x = 12,634.04

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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.