Home / 13,864.98-19,134.45-9,145.92

Finding the Fourth Proportional to 13,864.98, 19,134.45 and 9,145.92

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Solution

The fourth proportional to 13,864.98, 19,134.45 and 9,145.92 is: 12,621.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.98 : 19,134.45 = 9,145.92 : x
  2. Step 2: Convert to fraction form
    13,864.98/19,134.45 = 9,145.92/x
  3. Step 3: Cross multiply
    13,864.98x = 19,134.45 × 9,145.92
  4. Step 4: Simplify right side
    13,864.98x = 175,002,148.94
  5. Step 5: Solve for x
    x = 175,002,148.94/13,864.98
  6. Step 6: Final answer
    x = 12,621.88

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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.