Home / 10,134.20-15,187.56-3,888.44

Finding the Fourth Proportional to 10,134.20, 15,187.56 and 3,888.44

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Solution

The fourth proportional to 10,134.20, 15,187.56 and 3,888.44 is: 5,827.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,134.20 : 15,187.56 = 3,888.44 : x
  2. Step 2: Convert to fraction form
    10,134.20/15,187.56 = 3,888.44/x
  3. Step 3: Cross multiply
    10,134.20x = 15,187.56 × 3,888.44
  4. Step 4: Simplify right side
    10,134.20x = 59,055,915.81
  5. Step 5: Solve for x
    x = 59,055,915.81/10,134.20
  6. Step 6: Final answer
    x = 5,827.39

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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.