Home / 10,281.16-15,422.80-2,885.64

Finding the Fourth Proportional to 10,281.16, 15,422.80 and 2,885.64

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Solution

The fourth proportional to 10,281.16, 15,422.80 and 2,885.64 is: 4,328.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.16 : 15,422.80 = 2,885.64 : x
  2. Step 2: Convert to fraction form
    10,281.16/15,422.80 = 2,885.64/x
  3. Step 3: Cross multiply
    10,281.16x = 15,422.80 × 2,885.64
  4. Step 4: Simplify right side
    10,281.16x = 44,504,648.59
  5. Step 5: Solve for x
    x = 44,504,648.59/10,281.16
  6. Step 6: Final answer
    x = 4,328.76

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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.