Home / 10,135.19-15,188.20-4,283.75

Finding the Fourth Proportional to 10,135.19, 15,188.20 and 4,283.75

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Solution

The fourth proportional to 10,135.19, 15,188.20 and 4,283.75 is: 6,419.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.19 : 15,188.20 = 4,283.75 : x
  2. Step 2: Convert to fraction form
    10,135.19/15,188.20 = 4,283.75/x
  3. Step 3: Cross multiply
    10,135.19x = 15,188.20 × 4,283.75
  4. Step 4: Simplify right side
    10,135.19x = 65,062,365.10
  5. Step 5: Solve for x
    x = 65,062,365.10/10,135.19
  6. Step 6: Final answer
    x = 6,419.46

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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.