Home / 10,195.20-15,281.64-5,258.34

Finding the Fourth Proportional to 10,195.20, 15,281.64 and 5,258.34

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Solution

The fourth proportional to 10,195.20, 15,281.64 and 5,258.34 is: 7,881.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.20 : 15,281.64 = 5,258.34 : x
  2. Step 2: Convert to fraction form
    10,195.20/15,281.64 = 5,258.34/x
  3. Step 3: Cross multiply
    10,195.20x = 15,281.64 × 5,258.34
  4. Step 4: Simplify right side
    10,195.20x = 80,356,058.88
  5. Step 5: Solve for x
    x = 80,356,058.88/10,195.20
  6. Step 6: Final answer
    x = 7,881.75

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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.