Home / 9,211.20-12,711.48-5,232.20

Finding the Fourth Proportional to 9,211.20, 12,711.48 and 5,232.20

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Solution

The fourth proportional to 9,211.20, 12,711.48 and 5,232.20 is: 7,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.20 : 12,711.48 = 5,232.20 : x
  2. Step 2: Convert to fraction form
    9,211.20/12,711.48 = 5,232.20/x
  3. Step 3: Cross multiply
    9,211.20x = 12,711.48 × 5,232.20
  4. Step 4: Simplify right side
    9,211.20x = 66,509,005.66
  5. Step 5: Solve for x
    x = 66,509,005.66/9,211.20
  6. Step 6: Final answer
    x = 7,220.45

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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.