Home / 11,558.49-15,943.19-7,080.61

Finding the Fourth Proportional to 11,558.49, 15,943.19 and 7,080.61

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Solution

The fourth proportional to 11,558.49, 15,943.19 and 7,080.61 is: 9,766.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,558.49 : 15,943.19 = 7,080.61 : x
  2. Step 2: Convert to fraction form
    11,558.49/15,943.19 = 7,080.61/x
  3. Step 3: Cross multiply
    11,558.49x = 15,943.19 × 7,080.61
  4. Step 4: Simplify right side
    11,558.49x = 112,887,430.83
  5. Step 5: Solve for x
    x = 112,887,430.83/11,558.49
  6. Step 6: Final answer
    x = 9,766.63

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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.