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Finding the Fourth Proportional to 16,140.80, 24,230.40 and 9,126.40

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Solution

The fourth proportional to 16,140.80, 24,230.40 and 9,126.40 is: 13,700.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,140.80 : 24,230.40 = 9,126.40 : x
  2. Step 2: Convert to fraction form
    16,140.80/24,230.40 = 9,126.40/x
  3. Step 3: Cross multiply
    16,140.80x = 24,230.40 × 9,126.40
  4. Step 4: Simplify right side
    16,140.80x = 221,136,322.56
  5. Step 5: Solve for x
    x = 221,136,322.56/16,140.80
  6. Step 6: Final answer
    x = 13,700.46

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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.