Home / 14,674.28-22,013.12-5,318.72

Finding the Fourth Proportional to 14,674.28, 22,013.12 and 5,318.72

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Solution

The fourth proportional to 14,674.28, 22,013.12 and 5,318.72 is: 7,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,674.28 : 22,013.12 = 5,318.72 : x
  2. Step 2: Convert to fraction form
    14,674.28/22,013.12 = 5,318.72/x
  3. Step 3: Cross multiply
    14,674.28x = 22,013.12 × 5,318.72
  4. Step 4: Simplify right side
    14,674.28x = 117,081,621.61
  5. Step 5: Solve for x
    x = 117,081,621.61/14,674.28
  6. Step 6: Final answer
    x = 7,978.70

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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.