Home / 10,253.90-15,380.38-2,858.19

Finding the Fourth Proportional to 10,253.90, 15,380.38 and 2,858.19

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Solution

The fourth proportional to 10,253.90, 15,380.38 and 2,858.19 is: 4,287.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,253.90 : 15,380.38 = 2,858.19 : x
  2. Step 2: Convert to fraction form
    10,253.90/15,380.38 = 2,858.19/x
  3. Step 3: Cross multiply
    10,253.90x = 15,380.38 × 2,858.19
  4. Step 4: Simplify right side
    10,253.90x = 43,960,048.31
  5. Step 5: Solve for x
    x = 43,960,048.31/10,253.90
  6. Step 6: Final answer
    x = 4,287.15

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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.