Home / 9,126.88-12,595.28-5,147.22

Finding the Fourth Proportional to 9,126.88, 12,595.28 and 5,147.22

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Solution

The fourth proportional to 9,126.88, 12,595.28 and 5,147.22 is: 7,103.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,126.88 : 12,595.28 = 5,147.22 : x
  2. Step 2: Convert to fraction form
    9,126.88/12,595.28 = 5,147.22/x
  3. Step 3: Cross multiply
    9,126.88x = 12,595.28 × 5,147.22
  4. Step 4: Simplify right side
    9,126.88x = 64,830,677.12
  5. Step 5: Solve for x
    x = 64,830,677.12/9,126.88
  6. Step 6: Final answer
    x = 7,103.27

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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.