Home / 10,155.61-15,230.16-3,228.49

Finding the Fourth Proportional to 10,155.61, 15,230.16 and 3,228.49

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Solution

The fourth proportional to 10,155.61, 15,230.16 and 3,228.49 is: 4,841.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.61 : 15,230.16 = 3,228.49 : x
  2. Step 2: Convert to fraction form
    10,155.61/15,230.16 = 3,228.49/x
  3. Step 3: Cross multiply
    10,155.61x = 15,230.16 × 3,228.49
  4. Step 4: Simplify right side
    10,155.61x = 49,170,419.26
  5. Step 5: Solve for x
    x = 49,170,419.26/10,155.61
  6. Step 6: Final answer
    x = 4,841.70

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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.