Home / 11,315.02-15,614.47-6,279.18

Finding the Fourth Proportional to 11,315.02, 15,614.47 and 6,279.18

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Solution

The fourth proportional to 11,315.02, 15,614.47 and 6,279.18 is: 8,665.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.02 : 15,614.47 = 6,279.18 : x
  2. Step 2: Convert to fraction form
    11,315.02/15,614.47 = 6,279.18/x
  3. Step 3: Cross multiply
    11,315.02x = 15,614.47 × 6,279.18
  4. Step 4: Simplify right side
    11,315.02x = 98,046,067.73
  5. Step 5: Solve for x
    x = 98,046,067.73/11,315.02
  6. Step 6: Final answer
    x = 8,665.13

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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.