Home / 10,928.46-15,081.87-8,271.18

Finding the Fourth Proportional to 10,928.46, 15,081.87 and 8,271.18

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Solution

The fourth proportional to 10,928.46, 15,081.87 and 8,271.18 is: 11,414.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928.46 : 15,081.87 = 8,271.18 : x
  2. Step 2: Convert to fraction form
    10,928.46/15,081.87 = 8,271.18/x
  3. Step 3: Cross multiply
    10,928.46x = 15,081.87 × 8,271.18
  4. Step 4: Simplify right side
    10,928.46x = 124,744,861.51
  5. Step 5: Solve for x
    x = 124,744,861.51/10,928.46
  6. Step 6: Final answer
    x = 11,414.68

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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.