Home / 10,280.06-15,420.16-2,884.56

Finding the Fourth Proportional to 10,280.06, 15,420.16 and 2,884.56

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Solution

The fourth proportional to 10,280.06, 15,420.16 and 2,884.56 is: 4,326.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.06 : 15,420.16 = 2,884.56 : x
  2. Step 2: Convert to fraction form
    10,280.06/15,420.16 = 2,884.56/x
  3. Step 3: Cross multiply
    10,280.06x = 15,420.16 × 2,884.56
  4. Step 4: Simplify right side
    10,280.06x = 44,480,376.73
  5. Step 5: Solve for x
    x = 44,480,376.73/10,280.06
  6. Step 6: Final answer
    x = 4,326.86

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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.