Home / 13,320.92-18,381.60-7,352.84

Finding the Fourth Proportional to 13,320.92, 18,381.60 and 7,352.84

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Solution

The fourth proportional to 13,320.92, 18,381.60 and 7,352.84 is: 10,146.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.92 : 18,381.60 = 7,352.84 : x
  2. Step 2: Convert to fraction form
    13,320.92/18,381.60 = 7,352.84/x
  3. Step 3: Cross multiply
    13,320.92x = 18,381.60 × 7,352.84
  4. Step 4: Simplify right side
    13,320.92x = 135,156,963.74
  5. Step 5: Solve for x
    x = 135,156,963.74/13,320.92
  6. Step 6: Final answer
    x = 10,146.22

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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.