Home / 8,313.90-12,470.85-5,545.98

Finding the Fourth Proportional to 8,313.90, 12,470.85 and 5,545.98

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Solution

The fourth proportional to 8,313.90, 12,470.85 and 5,545.98 is: 8,318.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.90 : 12,470.85 = 5,545.98 : x
  2. Step 2: Convert to fraction form
    8,313.90/12,470.85 = 5,545.98/x
  3. Step 3: Cross multiply
    8,313.90x = 12,470.85 × 5,545.98
  4. Step 4: Simplify right side
    8,313.90x = 69,163,017.12
  5. Step 5: Solve for x
    x = 69,163,017.12/8,313.90
  6. Step 6: Final answer
    x = 8,318.97

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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.