Home / 9,339.24-12,887.28-5,147.46

Finding the Fourth Proportional to 9,339.24, 12,887.28 and 5,147.46

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Solution

The fourth proportional to 9,339.24, 12,887.28 and 5,147.46 is: 7,103.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,339.24 : 12,887.28 = 5,147.46 : x
  2. Step 2: Convert to fraction form
    9,339.24/12,887.28 = 5,147.46/x
  3. Step 3: Cross multiply
    9,339.24x = 12,887.28 × 5,147.46
  4. Step 4: Simplify right side
    9,339.24x = 66,336,758.31
  5. Step 5: Solve for x
    x = 66,336,758.31/9,339.24
  6. Step 6: Final answer
    x = 7,103.01

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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.