Home / 13,753.67-20,631.22-5,320.16

Finding the Fourth Proportional to 13,753.67, 20,631.22 and 5,320.16

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Solution

The fourth proportional to 13,753.67, 20,631.22 and 5,320.16 is: 7,980.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.67 : 20,631.22 = 5,320.16 : x
  2. Step 2: Convert to fraction form
    13,753.67/20,631.22 = 5,320.16/x
  3. Step 3: Cross multiply
    13,753.67x = 20,631.22 × 5,320.16
  4. Step 4: Simplify right side
    13,753.67x = 109,761,391.40
  5. Step 5: Solve for x
    x = 109,761,391.40/13,753.67
  6. Step 6: Final answer
    x = 7,980.52

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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.