Home / 7,109.27-9,812.75-4,126.07

Finding the Fourth Proportional to 7,109.27, 9,812.75 and 4,126.07

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Solution

The fourth proportional to 7,109.27, 9,812.75 and 4,126.07 is: 5,695.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.27 : 9,812.75 = 4,126.07 : x
  2. Step 2: Convert to fraction form
    7,109.27/9,812.75 = 4,126.07/x
  3. Step 3: Cross multiply
    7,109.27x = 9,812.75 × 4,126.07
  4. Step 4: Simplify right side
    7,109.27x = 40,488,023.70
  5. Step 5: Solve for x
    x = 40,488,023.70/7,109.27
  6. Step 6: Final answer
    x = 5,695.10

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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.