Home / 18,449.12-27,681.81-9,681.92

Finding the Fourth Proportional to 18,449.12, 27,681.81 and 9,681.92

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Solution

The fourth proportional to 18,449.12, 27,681.81 and 9,681.92 is: 14,527.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449.12 : 27,681.81 = 9,681.92 : x
  2. Step 2: Convert to fraction form
    18,449.12/27,681.81 = 9,681.92/x
  3. Step 3: Cross multiply
    18,449.12x = 27,681.81 × 9,681.92
  4. Step 4: Simplify right side
    18,449.12x = 268,013,069.88
  5. Step 5: Solve for x
    x = 268,013,069.88/18,449.12
  6. Step 6: Final answer
    x = 14,527.15

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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.