Home / 7,113.90-9,817.41-4,129.55

Finding the Fourth Proportional to 7,113.90, 9,817.41 and 4,129.55

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Solution

The fourth proportional to 7,113.90, 9,817.41 and 4,129.55 is: 5,698.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.90 : 9,817.41 = 4,129.55 : x
  2. Step 2: Convert to fraction form
    7,113.90/9,817.41 = 4,129.55/x
  3. Step 3: Cross multiply
    7,113.90x = 9,817.41 × 4,129.55
  4. Step 4: Simplify right side
    7,113.90x = 40,541,525.49
  5. Step 5: Solve for x
    x = 40,541,525.49/7,113.90
  6. Step 6: Final answer
    x = 5,698.92

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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.