Home / 10,147.36-14,002.88-5,671.68

Finding the Fourth Proportional to 10,147.36, 14,002.88 and 5,671.68

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Solution

The fourth proportional to 10,147.36, 14,002.88 and 5,671.68 is: 7,826.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.36 : 14,002.88 = 5,671.68 : x
  2. Step 2: Convert to fraction form
    10,147.36/14,002.88 = 5,671.68/x
  3. Step 3: Cross multiply
    10,147.36x = 14,002.88 × 5,671.68
  4. Step 4: Simplify right side
    10,147.36x = 79,419,854.44
  5. Step 5: Solve for x
    x = 79,419,854.44/10,147.36
  6. Step 6: Final answer
    x = 7,826.65

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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.