Home / 9,036.48-12,472.80-5,311.68

Finding the Fourth Proportional to 9,036.48, 12,472.80 and 5,311.68

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Solution

The fourth proportional to 9,036.48, 12,472.80 and 5,311.68 is: 7,331.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,036.48 : 12,472.80 = 5,311.68 : x
  2. Step 2: Convert to fraction form
    9,036.48/12,472.80 = 5,311.68/x
  3. Step 3: Cross multiply
    9,036.48x = 12,472.80 × 5,311.68
  4. Step 4: Simplify right side
    9,036.48x = 66,251,522.30
  5. Step 5: Solve for x
    x = 66,251,522.30/9,036.48
  6. Step 6: Final answer
    x = 7,331.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.