Home / 8,515.93-11,752.29-4,979.08

Finding the Fourth Proportional to 8,515.93, 11,752.29 and 4,979.08

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Solution

The fourth proportional to 8,515.93, 11,752.29 and 4,979.08 is: 6,871.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.93 : 11,752.29 = 4,979.08 : x
  2. Step 2: Convert to fraction form
    8,515.93/11,752.29 = 4,979.08/x
  3. Step 3: Cross multiply
    8,515.93x = 11,752.29 × 4,979.08
  4. Step 4: Simplify right side
    8,515.93x = 58,515,592.09
  5. Step 5: Solve for x
    x = 58,515,592.09/8,515.93
  6. Step 6: Final answer
    x = 6,871.31

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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.