Home / 10,281.54-15,422.40-2,490.42

Finding the Fourth Proportional to 10,281.54, 15,422.40 and 2,490.42

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Solution

The fourth proportional to 10,281.54, 15,422.40 and 2,490.42 is: 3,735.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.54 : 15,422.40 = 2,490.42 : x
  2. Step 2: Convert to fraction form
    10,281.54/15,422.40 = 2,490.42/x
  3. Step 3: Cross multiply
    10,281.54x = 15,422.40 × 2,490.42
  4. Step 4: Simplify right side
    10,281.54x = 38,408,253.41
  5. Step 5: Solve for x
    x = 38,408,253.41/10,281.54
  6. Step 6: Final answer
    x = 3,735.65

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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.