Home / 15,549.36-21,458.70-8,836.13

Finding the Fourth Proportional to 15,549.36, 21,458.70 and 8,836.13

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Solution

The fourth proportional to 15,549.36, 21,458.70 and 8,836.13 is: 12,194.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.36 : 21,458.70 = 8,836.13 : x
  2. Step 2: Convert to fraction form
    15,549.36/21,458.70 = 8,836.13/x
  3. Step 3: Cross multiply
    15,549.36x = 21,458.70 × 8,836.13
  4. Step 4: Simplify right side
    15,549.36x = 189,611,711.36
  5. Step 5: Solve for x
    x = 189,611,711.36/15,549.36
  6. Step 6: Final answer
    x = 12,194.18

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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.