Home / 12,553.12-18,818.49-4,767.40

Finding the Fourth Proportional to 12,553.12, 18,818.49 and 4,767.40

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Solution

The fourth proportional to 12,553.12, 18,818.49 and 4,767.40 is: 7,146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.12 : 18,818.49 = 4,767.40 : x
  2. Step 2: Convert to fraction form
    12,553.12/18,818.49 = 4,767.40/x
  3. Step 3: Cross multiply
    12,553.12x = 18,818.49 × 4,767.40
  4. Step 4: Simplify right side
    12,553.12x = 89,715,222.18
  5. Step 5: Solve for x
    x = 89,715,222.18/12,553.12
  6. Step 6: Final answer
    x = 7,146.85

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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.