Home / 8,861.32-12,228.49-5,084.40

Finding the Fourth Proportional to 8,861.32, 12,228.49 and 5,084.40

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Solution

The fourth proportional to 8,861.32, 12,228.49 and 5,084.40 is: 7,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.32 : 12,228.49 = 5,084.40 : x
  2. Step 2: Convert to fraction form
    8,861.32/12,228.49 = 5,084.40/x
  3. Step 3: Cross multiply
    8,861.32x = 12,228.49 × 5,084.40
  4. Step 4: Simplify right side
    8,861.32x = 62,174,521.85
  5. Step 5: Solve for x
    x = 62,174,521.85/8,861.32
  6. Step 6: Final answer
    x = 7,016.40

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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.