Home / 13,532.62-20,337.13-7,988.57

Finding the Fourth Proportional to 13,532.62, 20,337.13 and 7,988.57

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Solution

The fourth proportional to 13,532.62, 20,337.13 and 7,988.57 is: 12,005.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,532.62 : 20,337.13 = 7,988.57 : x
  2. Step 2: Convert to fraction form
    13,532.62/20,337.13 = 7,988.57/x
  3. Step 3: Cross multiply
    13,532.62x = 20,337.13 × 7,988.57
  4. Step 4: Simplify right side
    13,532.62x = 162,464,586.60
  5. Step 5: Solve for x
    x = 162,464,586.60/13,532.62
  6. Step 6: Final answer
    x = 12,005.41

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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.