Home / 15,838.20-21,853.80-10,173.96

Finding the Fourth Proportional to 15,838.20, 21,853.80 and 10,173.96

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Solution

The fourth proportional to 15,838.20, 21,853.80 and 10,173.96 is: 14,038.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,838.20 : 21,853.80 = 10,173.96 : x
  2. Step 2: Convert to fraction form
    15,838.20/21,853.80 = 10,173.96/x
  3. Step 3: Cross multiply
    15,838.20x = 21,853.80 × 10,173.96
  4. Step 4: Simplify right side
    15,838.20x = 222,339,687.05
  5. Step 5: Solve for x
    x = 222,339,687.05/15,838.20
  6. Step 6: Final answer
    x = 14,038.19

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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.