Home / 15,606.52-21,540.80-13,084.63

Finding the Fourth Proportional to 15,606.52, 21,540.80 and 13,084.63

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Solution

The fourth proportional to 15,606.52, 21,540.80 and 13,084.63 is: 18,059.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,606.52 : 21,540.80 = 13,084.63 : x
  2. Step 2: Convert to fraction form
    15,606.52/21,540.80 = 13,084.63/x
  3. Step 3: Cross multiply
    15,606.52x = 21,540.80 × 13,084.63
  4. Step 4: Simplify right side
    15,606.52x = 281,853,376.76
  5. Step 5: Solve for x
    x = 281,853,376.76/15,606.52
  6. Step 6: Final answer
    x = 18,059.98

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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.