Home / 9,420.38-14,130.56-3,876.74

Finding the Fourth Proportional to 9,420.38, 14,130.56 and 3,876.74

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Solution

The fourth proportional to 9,420.38, 14,130.56 and 3,876.74 is: 5,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.38 : 14,130.56 = 3,876.74 : x
  2. Step 2: Convert to fraction form
    9,420.38/14,130.56 = 3,876.74/x
  3. Step 3: Cross multiply
    9,420.38x = 14,130.56 × 3,876.74
  4. Step 4: Simplify right side
    9,420.38x = 54,780,446.21
  5. Step 5: Solve for x
    x = 54,780,446.21/9,420.38
  6. Step 6: Final answer
    x = 5,815.10

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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.