Home / 8,253.19-12,387.65-5,123.73

Finding the Fourth Proportional to 8,253.19, 12,387.65 and 5,123.73

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Solution

The fourth proportional to 8,253.19, 12,387.65 and 5,123.73 is: 7,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.19 : 12,387.65 = 5,123.73 : x
  2. Step 2: Convert to fraction form
    8,253.19/12,387.65 = 5,123.73/x
  3. Step 3: Cross multiply
    8,253.19x = 12,387.65 × 5,123.73
  4. Step 4: Simplify right side
    8,253.19x = 63,470,973.93
  5. Step 5: Solve for x
    x = 63,470,973.93/8,253.19
  6. Step 6: Final answer
    x = 7,690.48

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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.