Home / 8,342.12-11,514.48-4,987.28

Finding the Fourth Proportional to 8,342.12, 11,514.48 and 4,987.28

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Solution

The fourth proportional to 8,342.12, 11,514.48 and 4,987.28 is: 6,883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.12 : 11,514.48 = 4,987.28 : x
  2. Step 2: Convert to fraction form
    8,342.12/11,514.48 = 4,987.28/x
  3. Step 3: Cross multiply
    8,342.12x = 11,514.48 × 4,987.28
  4. Step 4: Simplify right side
    8,342.12x = 57,425,935.81
  5. Step 5: Solve for x
    x = 57,425,935.81/8,342.12
  6. Step 6: Final answer
    x = 6,883.85

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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.