Home / 9,760.90-13,470-5,512.85

Finding the Fourth Proportional to 9,760.90, 13,470 and 5,512.85

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Solution

The fourth proportional to 9,760.90, 13,470 and 5,512.85 is: 7,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,760.90 : 13,470 = 5,512.85 : x
  2. Step 2: Convert to fraction form
    9,760.90/13,470 = 5,512.85/x
  3. Step 3: Cross multiply
    9,760.90x = 13,470 × 5,512.85
  4. Step 4: Simplify right side
    9,760.90x = 74,258,089.50
  5. Step 5: Solve for x
    x = 74,258,089.50/9,760.90
  6. Step 6: Final answer
    x = 7,607.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.