Home / 10,258.74-15,378.53-5,571.90

Finding the Fourth Proportional to 10,258.74, 15,378.53 and 5,571.90

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Solution

The fourth proportional to 10,258.74, 15,378.53 and 5,571.90 is: 8,352.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,258.74 : 15,378.53 = 5,571.90 : x
  2. Step 2: Convert to fraction form
    10,258.74/15,378.53 = 5,571.90/x
  3. Step 3: Cross multiply
    10,258.74x = 15,378.53 × 5,571.90
  4. Step 4: Simplify right side
    10,258.74x = 85,687,603.45
  5. Step 5: Solve for x
    x = 85,687,603.45/10,258.74
  6. Step 6: Final answer
    x = 8,352.64

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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.