Home / 15,381.46-23,064.96-9,142.30

Finding the Fourth Proportional to 15,381.46, 23,064.96 and 9,142.30

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Solution

The fourth proportional to 15,381.46, 23,064.96 and 9,142.30 is: 13,709.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,381.46 : 23,064.96 = 9,142.30 : x
  2. Step 2: Convert to fraction form
    15,381.46/23,064.96 = 9,142.30/x
  3. Step 3: Cross multiply
    15,381.46x = 23,064.96 × 9,142.30
  4. Step 4: Simplify right side
    15,381.46x = 210,866,668.48
  5. Step 5: Solve for x
    x = 210,866,668.48/15,381.46
  6. Step 6: Final answer
    x = 13,709.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.