Home / 8,785.20-12,123.06-4,805.52

Finding the Fourth Proportional to 8,785.20, 12,123.06 and 4,805.52

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Solution

The fourth proportional to 8,785.20, 12,123.06 and 4,805.52 is: 6,631.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.20 : 12,123.06 = 4,805.52 : x
  2. Step 2: Convert to fraction form
    8,785.20/12,123.06 = 4,805.52/x
  3. Step 3: Cross multiply
    8,785.20x = 12,123.06 × 4,805.52
  4. Step 4: Simplify right side
    8,785.20x = 58,257,607.29
  5. Step 5: Solve for x
    x = 58,257,607.29/8,785.20
  6. Step 6: Final answer
    x = 6,631.34

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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.