Home / 13,731.17-20,596.86-8,991.32

Finding the Fourth Proportional to 13,731.17, 20,596.86 and 8,991.32

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Solution

The fourth proportional to 13,731.17, 20,596.86 and 8,991.32 is: 13,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.17 : 20,596.86 = 8,991.32 : x
  2. Step 2: Convert to fraction form
    13,731.17/20,596.86 = 8,991.32/x
  3. Step 3: Cross multiply
    13,731.17x = 20,596.86 × 8,991.32
  4. Step 4: Simplify right side
    13,731.17x = 185,192,959.26
  5. Step 5: Solve for x
    x = 185,192,959.26/13,731.17
  6. Step 6: Final answer
    x = 13,487.05

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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.