Home / 7,943.45-11,904.56-4,187.57

Finding the Fourth Proportional to 7,943.45, 11,904.56 and 4,187.57

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Solution

The fourth proportional to 7,943.45, 11,904.56 and 4,187.57 is: 6,275.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.45 : 11,904.56 = 4,187.57 : x
  2. Step 2: Convert to fraction form
    7,943.45/11,904.56 = 4,187.57/x
  3. Step 3: Cross multiply
    7,943.45x = 11,904.56 × 4,187.57
  4. Step 4: Simplify right side
    7,943.45x = 49,851,159.03
  5. Step 5: Solve for x
    x = 49,851,159.03/7,943.45
  6. Step 6: Final answer
    x = 6,275.76

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1.5x scale

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.