Home / 13,320.92-18,381.06-7,655.24

Finding the Fourth Proportional to 13,320.92, 18,381.06 and 7,655.24

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Solution

The fourth proportional to 13,320.92, 18,381.06 and 7,655.24 is: 10,563.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.92 : 18,381.06 = 7,655.24 : x
  2. Step 2: Convert to fraction form
    13,320.92/18,381.06 = 7,655.24/x
  3. Step 3: Cross multiply
    13,320.92x = 18,381.06 × 7,655.24
  4. Step 4: Simplify right side
    13,320.92x = 140,711,425.75
  5. Step 5: Solve for x
    x = 140,711,425.75/13,320.92
  6. Step 6: Final answer
    x = 10,563.19

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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.