Home / 12,065.28-18,098.08-7,931.68

Finding the Fourth Proportional to 12,065.28, 18,098.08 and 7,931.68

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Solution

The fourth proportional to 12,065.28, 18,098.08 and 7,931.68 is: 11,897.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,065.28 : 18,098.08 = 7,931.68 : x
  2. Step 2: Convert to fraction form
    12,065.28/18,098.08 = 7,931.68/x
  3. Step 3: Cross multiply
    12,065.28x = 18,098.08 × 7,931.68
  4. Step 4: Simplify right side
    12,065.28x = 143,548,179.17
  5. Step 5: Solve for x
    x = 143,548,179.17/12,065.28
  6. Step 6: Final answer
    x = 11,897.63

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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.