Home / 8,488.23-12,740.46-5,207.73

Finding the Fourth Proportional to 8,488.23, 12,740.46 and 5,207.73

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Solution

The fourth proportional to 8,488.23, 12,740.46 and 5,207.73 is: 7,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.23 : 12,740.46 = 5,207.73 : x
  2. Step 2: Convert to fraction form
    8,488.23/12,740.46 = 5,207.73/x
  3. Step 3: Cross multiply
    8,488.23x = 12,740.46 × 5,207.73
  4. Step 4: Simplify right side
    8,488.23x = 66,348,808.45
  5. Step 5: Solve for x
    x = 66,348,808.45/8,488.23
  6. Step 6: Final answer
    x = 7,816.57

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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.