Home / 10,454.28-15,671.50-3,878.76

Finding the Fourth Proportional to 10,454.28, 15,671.50 and 3,878.76

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Solution

The fourth proportional to 10,454.28, 15,671.50 and 3,878.76 is: 5,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,454.28 : 15,671.50 = 3,878.76 : x
  2. Step 2: Convert to fraction form
    10,454.28/15,671.50 = 3,878.76/x
  3. Step 3: Cross multiply
    10,454.28x = 15,671.50 × 3,878.76
  4. Step 4: Simplify right side
    10,454.28x = 60,785,987.34
  5. Step 5: Solve for x
    x = 60,785,987.34/10,454.28
  6. Step 6: Final answer
    x = 5,814.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.