Home / 8,864.16-13,288.68-3,931.12

Finding the Fourth Proportional to 8,864.16, 13,288.68 and 3,931.12

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Solution

The fourth proportional to 8,864.16, 13,288.68 and 3,931.12 is: 5,893.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,864.16 : 13,288.68 = 3,931.12 : x
  2. Step 2: Convert to fraction form
    8,864.16/13,288.68 = 3,931.12/x
  3. Step 3: Cross multiply
    8,864.16x = 13,288.68 × 3,931.12
  4. Step 4: Simplify right side
    8,864.16x = 52,239,395.72
  5. Step 5: Solve for x
    x = 52,239,395.72/8,864.16
  6. Step 6: Final answer
    x = 5,893.33

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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.