Home / 8,767.43-13,130.15-6,389.14

Finding the Fourth Proportional to 8,767.43, 13,130.15 and 6,389.14

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Solution

The fourth proportional to 8,767.43, 13,130.15 and 6,389.14 is: 9,568.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,767.43 : 13,130.15 = 6,389.14 : x
  2. Step 2: Convert to fraction form
    8,767.43/13,130.15 = 6,389.14/x
  3. Step 3: Cross multiply
    8,767.43x = 13,130.15 × 6,389.14
  4. Step 4: Simplify right side
    8,767.43x = 83,890,301.80
  5. Step 5: Solve for x
    x = 83,890,301.80/8,767.43
  6. Step 6: Final answer
    x = 9,568.40

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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.