Home / 13,532.54-20,247.77-7,988.90

Finding the Fourth Proportional to 13,532.54, 20,247.77 and 7,988.90

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Solution

The fourth proportional to 13,532.54, 20,247.77 and 7,988.90 is: 11,953.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,532.54 : 20,247.77 = 7,988.90 : x
  2. Step 2: Convert to fraction form
    13,532.54/20,247.77 = 7,988.90/x
  3. Step 3: Cross multiply
    13,532.54x = 20,247.77 × 7,988.90
  4. Step 4: Simplify right side
    13,532.54x = 161,757,409.75
  5. Step 5: Solve for x
    x = 161,757,409.75/13,532.54
  6. Step 6: Final answer
    x = 11,953.22

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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.