Home / 8,360.12-11,544.78-5,381.13

Finding the Fourth Proportional to 8,360.12, 11,544.78 and 5,381.13

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Solution

The fourth proportional to 8,360.12, 11,544.78 and 5,381.13 is: 7,430.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.12 : 11,544.78 = 5,381.13 : x
  2. Step 2: Convert to fraction form
    8,360.12/11,544.78 = 5,381.13/x
  3. Step 3: Cross multiply
    8,360.12x = 11,544.78 × 5,381.13
  4. Step 4: Simplify right side
    8,360.12x = 62,123,995.20
  5. Step 5: Solve for x
    x = 62,123,995.20/8,360.12
  6. Step 6: Final answer
    x = 7,430.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.