Home / 10,158.76-15,239.42-3,918.60

Finding the Fourth Proportional to 10,158.76, 15,239.42 and 3,918.60

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Solution

The fourth proportional to 10,158.76, 15,239.42 and 3,918.60 is: 5,878.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,158.76 : 15,239.42 = 3,918.60 : x
  2. Step 2: Convert to fraction form
    10,158.76/15,239.42 = 3,918.60/x
  3. Step 3: Cross multiply
    10,158.76x = 15,239.42 × 3,918.60
  4. Step 4: Simplify right side
    10,158.76x = 59,717,191.21
  5. Step 5: Solve for x
    x = 59,717,191.21/10,158.76
  6. Step 6: Final answer
    x = 5,878.39

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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.