Home / 7,439.52-11,166.48-5,471.20

Finding the Fourth Proportional to 7,439.52, 11,166.48 and 5,471.20

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Solution

The fourth proportional to 7,439.52, 11,166.48 and 5,471.20 is: 8,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.52 : 11,166.48 = 5,471.20 : x
  2. Step 2: Convert to fraction form
    7,439.52/11,166.48 = 5,471.20/x
  3. Step 3: Cross multiply
    7,439.52x = 11,166.48 × 5,471.20
  4. Step 4: Simplify right side
    7,439.52x = 61,094,045.38
  5. Step 5: Solve for x
    x = 61,094,045.38/7,439.52
  6. Step 6: Final answer
    x = 8,212.10

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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.