Home / 15,549.73-21,458.67-8,837.59

Finding the Fourth Proportional to 15,549.73, 21,458.67 and 8,837.59

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Solution

The fourth proportional to 15,549.73, 21,458.67 and 8,837.59 is: 12,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.73 : 21,458.67 = 8,837.59 : x
  2. Step 2: Convert to fraction form
    15,549.73/21,458.67 = 8,837.59/x
  3. Step 3: Cross multiply
    15,549.73x = 21,458.67 × 8,837.59
  4. Step 4: Simplify right side
    15,549.73x = 189,642,873.76
  5. Step 5: Solve for x
    x = 189,642,873.76/15,549.73
  6. Step 6: Final answer
    x = 12,195.90

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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.