Home / 10,258.79-15,360.42-5,318.04

Finding the Fourth Proportional to 10,258.79, 15,360.42 and 5,318.04

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Solution

The fourth proportional to 10,258.79, 15,360.42 and 5,318.04 is: 7,962.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,258.79 : 15,360.42 = 5,318.04 : x
  2. Step 2: Convert to fraction form
    10,258.79/15,360.42 = 5,318.04/x
  3. Step 3: Cross multiply
    10,258.79x = 15,360.42 × 5,318.04
  4. Step 4: Simplify right side
    10,258.79x = 81,687,289.20
  5. Step 5: Solve for x
    x = 81,687,289.20/10,258.79
  6. Step 6: Final answer
    x = 7,962.67

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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.