Home / 8,976.51-12,385.70-5,199.45

Finding the Fourth Proportional to 8,976.51, 12,385.70 and 5,199.45

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Solution

The fourth proportional to 8,976.51, 12,385.70 and 5,199.45 is: 7,174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.51 : 12,385.70 = 5,199.45 : x
  2. Step 2: Convert to fraction form
    8,976.51/12,385.70 = 5,199.45/x
  3. Step 3: Cross multiply
    8,976.51x = 12,385.70 × 5,199.45
  4. Step 4: Simplify right side
    8,976.51x = 64,398,765.94
  5. Step 5: Solve for x
    x = 64,398,765.94/8,976.51
  6. Step 6: Final answer
    x = 7,174.15

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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.