Home / 10,306.41-15,459.39-2,515.20

Finding the Fourth Proportional to 10,306.41, 15,459.39 and 2,515.20

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Solution

The fourth proportional to 10,306.41, 15,459.39 and 2,515.20 is: 3,772.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.41 : 15,459.39 = 2,515.20 : x
  2. Step 2: Convert to fraction form
    10,306.41/15,459.39 = 2,515.20/x
  3. Step 3: Cross multiply
    10,306.41x = 15,459.39 × 2,515.20
  4. Step 4: Simplify right side
    10,306.41x = 38,883,457.73
  5. Step 5: Solve for x
    x = 38,883,457.73/10,306.41
  6. Step 6: Final answer
    x = 3,772.75

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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.