Home / 14,928.46-22,358.65-7,142.78

Finding the Fourth Proportional to 14,928.46, 22,358.65 and 7,142.78

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Solution

The fourth proportional to 14,928.46, 22,358.65 and 7,142.78 is: 10,697.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,928.46 : 22,358.65 = 7,142.78 : x
  2. Step 2: Convert to fraction form
    14,928.46/22,358.65 = 7,142.78/x
  3. Step 3: Cross multiply
    14,928.46x = 22,358.65 × 7,142.78
  4. Step 4: Simplify right side
    14,928.46x = 159,702,918.05
  5. Step 5: Solve for x
    x = 159,702,918.05/14,928.46
  6. Step 6: Final answer
    x = 10,697.88

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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.