Home / 15,748.52-21,725.70-10,161.32

Finding the Fourth Proportional to 15,748.52, 21,725.70 and 10,161.32

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Solution

The fourth proportional to 15,748.52, 21,725.70 and 10,161.32 is: 14,017.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.52 : 21,725.70 = 10,161.32 : x
  2. Step 2: Convert to fraction form
    15,748.52/21,725.70 = 10,161.32/x
  3. Step 3: Cross multiply
    15,748.52x = 21,725.70 × 10,161.32
  4. Step 4: Simplify right side
    15,748.52x = 220,761,789.92
  5. Step 5: Solve for x
    x = 220,761,789.92/15,748.52
  6. Step 6: Final answer
    x = 14,017.94

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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.