Home / 11,254.30-15,531.09-6,218.63

Finding the Fourth Proportional to 11,254.30, 15,531.09 and 6,218.63

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Solution

The fourth proportional to 11,254.30, 15,531.09 and 6,218.63 is: 8,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,254.30 : 15,531.09 = 6,218.63 : x
  2. Step 2: Convert to fraction form
    11,254.30/15,531.09 = 6,218.63/x
  3. Step 3: Cross multiply
    11,254.30x = 15,531.09 × 6,218.63
  4. Step 4: Simplify right side
    11,254.30x = 96,582,141.03
  5. Step 5: Solve for x
    x = 96,582,141.03/11,254.30
  6. Step 6: Final answer
    x = 8,581.80

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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.