Home / 15,549.39-21,458.74-8,836.15

Finding the Fourth Proportional to 15,549.39, 21,458.74 and 8,836.15

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Solution

The fourth proportional to 15,549.39, 21,458.74 and 8,836.15 is: 12,194.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.39 : 21,458.74 = 8,836.15 : x
  2. Step 2: Convert to fraction form
    15,549.39/21,458.74 = 8,836.15/x
  3. Step 3: Cross multiply
    15,549.39x = 21,458.74 × 8,836.15
  4. Step 4: Simplify right side
    15,549.39x = 189,612,645.45
  5. Step 5: Solve for x
    x = 189,612,645.45/15,549.39
  6. Step 6: Final answer
    x = 12,194.22

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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.