Home / 8,976.13-12,386.25-5,199.23

Finding the Fourth Proportional to 8,976.13, 12,386.25 and 5,199.23

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Solution

The fourth proportional to 8,976.13, 12,386.25 and 5,199.23 is: 7,174.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.13 : 12,386.25 = 5,199.23 : x
  2. Step 2: Convert to fraction form
    8,976.13/12,386.25 = 5,199.23/x
  3. Step 3: Cross multiply
    8,976.13x = 12,386.25 × 5,199.23
  4. Step 4: Simplify right side
    8,976.13x = 64,398,962.59
  5. Step 5: Solve for x
    x = 64,398,962.59/8,976.13
  6. Step 6: Final answer
    x = 7,174.47

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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.