Home / 6,862.47-9,470.37-4,172.76

Finding the Fourth Proportional to 6,862.47, 9,470.37 and 4,172.76

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Solution

The fourth proportional to 6,862.47, 9,470.37 and 4,172.76 is: 5,758.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.47 : 9,470.37 = 4,172.76 : x
  2. Step 2: Convert to fraction form
    6,862.47/9,470.37 = 4,172.76/x
  3. Step 3: Cross multiply
    6,862.47x = 9,470.37 × 4,172.76
  4. Step 4: Simplify right side
    6,862.47x = 39,517,581.12
  5. Step 5: Solve for x
    x = 39,517,581.12/6,862.47
  6. Step 6: Final answer
    x = 5,758.51

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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.