Home / 10,518.88-15,757.80-6,127.20

Finding the Fourth Proportional to 10,518.88, 15,757.80 and 6,127.20

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Solution

The fourth proportional to 10,518.88, 15,757.80 and 6,127.20 is: 9,178.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.88 : 15,757.80 = 6,127.20 : x
  2. Step 2: Convert to fraction form
    10,518.88/15,757.80 = 6,127.20/x
  3. Step 3: Cross multiply
    10,518.88x = 15,757.80 × 6,127.20
  4. Step 4: Simplify right side
    10,518.88x = 96,551,192.16
  5. Step 5: Solve for x
    x = 96,551,192.16/10,518.88
  6. Step 6: Final answer
    x = 9,178.85

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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.