Home / 10,115.28-13,950.36-6,577.20

Finding the Fourth Proportional to 10,115.28, 13,950.36 and 6,577.20

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Solution

The fourth proportional to 10,115.28, 13,950.36 and 6,577.20 is: 9,070.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.28 : 13,950.36 = 6,577.20 : x
  2. Step 2: Convert to fraction form
    10,115.28/13,950.36 = 6,577.20/x
  3. Step 3: Cross multiply
    10,115.28x = 13,950.36 × 6,577.20
  4. Step 4: Simplify right side
    10,115.28x = 91,754,307.79
  5. Step 5: Solve for x
    x = 91,754,307.79/10,115.28
  6. Step 6: Final answer
    x = 9,070.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.