Home / 11,127.20-16,695.60-5,655.20

Finding the Fourth Proportional to 11,127.20, 16,695.60 and 5,655.20

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Solution

The fourth proportional to 11,127.20, 16,695.60 and 5,655.20 is: 8,485.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.20 : 16,695.60 = 5,655.20 : x
  2. Step 2: Convert to fraction form
    11,127.20/16,695.60 = 5,655.20/x
  3. Step 3: Cross multiply
    11,127.20x = 16,695.60 × 5,655.20
  4. Step 4: Simplify right side
    11,127.20x = 94,416,957.12
  5. Step 5: Solve for x
    x = 94,416,957.12/11,127.20
  6. Step 6: Final answer
    x = 8,485.24

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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.