Home / 8,931.65-13,399.40-3,009.13

Finding the Fourth Proportional to 8,931.65, 13,399.40 and 3,009.13

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Solution

The fourth proportional to 8,931.65, 13,399.40 and 3,009.13 is: 4,514.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.65 : 13,399.40 = 3,009.13 : x
  2. Step 2: Convert to fraction form
    8,931.65/13,399.40 = 3,009.13/x
  3. Step 3: Cross multiply
    8,931.65x = 13,399.40 × 3,009.13
  4. Step 4: Simplify right side
    8,931.65x = 40,320,454.48
  5. Step 5: Solve for x
    x = 40,320,454.48/8,931.65
  6. Step 6: Final answer
    x = 4,514.33

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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.