Home / 8,707.60-13,061.40-6,122.08

Finding the Fourth Proportional to 8,707.60, 13,061.40 and 6,122.08

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Solution

The fourth proportional to 8,707.60, 13,061.40 and 6,122.08 is: 9,183.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.60 : 13,061.40 = 6,122.08 : x
  2. Step 2: Convert to fraction form
    8,707.60/13,061.40 = 6,122.08/x
  3. Step 3: Cross multiply
    8,707.60x = 13,061.40 × 6,122.08
  4. Step 4: Simplify right side
    8,707.60x = 79,962,839.79
  5. Step 5: Solve for x
    x = 79,962,839.79/8,707.60
  6. Step 6: Final answer
    x = 9,183.11

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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.