Home / 8,488.40-12,740.70-4,333.10

Finding the Fourth Proportional to 8,488.40, 12,740.70 and 4,333.10

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Solution

The fourth proportional to 8,488.40, 12,740.70 and 4,333.10 is: 6,503.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.40 : 12,740.70 = 4,333.10 : x
  2. Step 2: Convert to fraction form
    8,488.40/12,740.70 = 4,333.10/x
  3. Step 3: Cross multiply
    8,488.40x = 12,740.70 × 4,333.10
  4. Step 4: Simplify right side
    8,488.40x = 55,206,727.17
  5. Step 5: Solve for x
    x = 55,206,727.17/8,488.40
  6. Step 6: Final answer
    x = 6,503.78

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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.