Home / 8,927.70-12,322.80-5,391.18

Finding the Fourth Proportional to 8,927.70, 12,322.80 and 5,391.18

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Solution

The fourth proportional to 8,927.70, 12,322.80 and 5,391.18 is: 7,441.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.70 : 12,322.80 = 5,391.18 : x
  2. Step 2: Convert to fraction form
    8,927.70/12,322.80 = 5,391.18/x
  3. Step 3: Cross multiply
    8,927.70x = 12,322.80 × 5,391.18
  4. Step 4: Simplify right side
    8,927.70x = 66,434,432.90
  5. Step 5: Solve for x
    x = 66,434,432.90/8,927.70
  6. Step 6: Final answer
    x = 7,441.38

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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.