Home / 8,718.90-12,033.09-5,182.11

Finding the Fourth Proportional to 8,718.90, 12,033.09 and 5,182.11

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Solution

The fourth proportional to 8,718.90, 12,033.09 and 5,182.11 is: 7,151.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.90 : 12,033.09 = 5,182.11 : x
  2. Step 2: Convert to fraction form
    8,718.90/12,033.09 = 5,182.11/x
  3. Step 3: Cross multiply
    8,718.90x = 12,033.09 × 5,182.11
  4. Step 4: Simplify right side
    8,718.90x = 62,356,796.02
  5. Step 5: Solve for x
    x = 62,356,796.02/8,718.90
  6. Step 6: Final answer
    x = 7,151.91

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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.