Home / 8,914.92-12,301.11-5,728.92

Finding the Fourth Proportional to 8,914.92, 12,301.11 and 5,728.92

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Solution

The fourth proportional to 8,914.92, 12,301.11 and 5,728.92 is: 7,904.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.92 : 12,301.11 = 5,728.92 : x
  2. Step 2: Convert to fraction form
    8,914.92/12,301.11 = 5,728.92/x
  3. Step 3: Cross multiply
    8,914.92x = 12,301.11 × 5,728.92
  4. Step 4: Simplify right side
    8,914.92x = 70,472,075.10
  5. Step 5: Solve for x
    x = 70,472,075.10/8,914.92
  6. Step 6: Final answer
    x = 7,904.96

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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.