Home / 13,532.12-20,336.38-7,988.07

Finding the Fourth Proportional to 13,532.12, 20,336.38 and 7,988.07

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Solution

The fourth proportional to 13,532.12, 20,336.38 and 7,988.07 is: 12,004.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,532.12 : 20,336.38 = 7,988.07 : x
  2. Step 2: Convert to fraction form
    13,532.12/20,336.38 = 7,988.07/x
  3. Step 3: Cross multiply
    13,532.12x = 20,336.38 × 7,988.07
  4. Step 4: Simplify right side
    13,532.12x = 162,448,407.02
  5. Step 5: Solve for x
    x = 162,448,407.02/13,532.12
  6. Step 6: Final answer
    x = 12,004.66

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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.