Home / 15,982.56-22,036.32-13,140

Finding the Fourth Proportional to 15,982.56, 22,036.32 and 13,140

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Solution

The fourth proportional to 15,982.56, 22,036.32 and 13,140 is: 18,117.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.56 : 22,036.32 = 13,140 : x
  2. Step 2: Convert to fraction form
    15,982.56/22,036.32 = 13,140/x
  3. Step 3: Cross multiply
    15,982.56x = 22,036.32 × 13,140
  4. Step 4: Simplify right side
    15,982.56x = 289,557,244.80
  5. Step 5: Solve for x
    x = 289,557,244.80/15,982.56
  6. Step 6: Final answer
    x = 18,117.08

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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.