Home / 8,944.28-12,341.28-5,407.76

Finding the Fourth Proportional to 8,944.28, 12,341.28 and 5,407.76

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Solution

The fourth proportional to 8,944.28, 12,341.28 and 5,407.76 is: 7,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,944.28 : 12,341.28 = 5,407.76 : x
  2. Step 2: Convert to fraction form
    8,944.28/12,341.28 = 5,407.76/x
  3. Step 3: Cross multiply
    8,944.28x = 12,341.28 × 5,407.76
  4. Step 4: Simplify right side
    8,944.28x = 66,738,680.33
  5. Step 5: Solve for x
    x = 66,738,680.33/8,944.28
  6. Step 6: Final answer
    x = 7,461.60

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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.