Home / 12,160.17-18,248.47-4,763.71

Finding the Fourth Proportional to 12,160.17, 18,248.47 and 4,763.71

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Solution

The fourth proportional to 12,160.17, 18,248.47 and 4,763.71 is: 7,148.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.17 : 18,248.47 = 4,763.71 : x
  2. Step 2: Convert to fraction form
    12,160.17/18,248.47 = 4,763.71/x
  3. Step 3: Cross multiply
    12,160.17x = 18,248.47 × 4,763.71
  4. Step 4: Simplify right side
    12,160.17x = 86,930,419.02
  5. Step 5: Solve for x
    x = 86,930,419.02/12,160.17
  6. Step 6: Final answer
    x = 7,148.78

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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.