Home / 10,253.76-15,378.96-2,858.72

Finding the Fourth Proportional to 10,253.76, 15,378.96 and 2,858.72

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Solution

The fourth proportional to 10,253.76, 15,378.96 and 2,858.72 is: 4,287.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,253.76 : 15,378.96 = 2,858.72 : x
  2. Step 2: Convert to fraction form
    10,253.76/15,378.96 = 2,858.72/x
  3. Step 3: Cross multiply
    10,253.76x = 15,378.96 × 2,858.72
  4. Step 4: Simplify right side
    10,253.76x = 43,964,140.53
  5. Step 5: Solve for x
    x = 43,964,140.53/10,253.76
  6. Step 6: Final answer
    x = 4,287.61

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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.