Home / 9,221.16-12,725.28-5,242.36

Finding the Fourth Proportional to 9,221.16, 12,725.28 and 5,242.36

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Solution

The fourth proportional to 9,221.16, 12,725.28 and 5,242.36 is: 7,234.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.16 : 12,725.28 = 5,242.36 : x
  2. Step 2: Convert to fraction form
    9,221.16/12,725.28 = 5,242.36/x
  3. Step 3: Cross multiply
    9,221.16x = 12,725.28 × 5,242.36
  4. Step 4: Simplify right side
    9,221.16x = 66,710,498.86
  5. Step 5: Solve for x
    x = 66,710,498.86/9,221.16
  6. Step 6: Final answer
    x = 7,234.50

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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.