Home / 8,990.38-13,463.70-6,209.65

Finding the Fourth Proportional to 8,990.38, 13,463.70 and 6,209.65

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Solution

The fourth proportional to 8,990.38, 13,463.70 and 6,209.65 is: 9,299.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.38 : 13,463.70 = 6,209.65 : x
  2. Step 2: Convert to fraction form
    8,990.38/13,463.70 = 6,209.65/x
  3. Step 3: Cross multiply
    8,990.38x = 13,463.70 × 6,209.65
  4. Step 4: Simplify right side
    8,990.38x = 83,604,864.71
  5. Step 5: Solve for x
    x = 83,604,864.71/8,990.38
  6. Step 6: Final answer
    x = 9,299.37

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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.