Home / 15,917.50-21,966.26-9,952.68

Finding the Fourth Proportional to 15,917.50, 21,966.26 and 9,952.68

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Solution

The fourth proportional to 15,917.50, 21,966.26 and 9,952.68 is: 13,734.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,917.50 : 21,966.26 = 9,952.68 : x
  2. Step 2: Convert to fraction form
    15,917.50/21,966.26 = 9,952.68/x
  3. Step 3: Cross multiply
    15,917.50x = 21,966.26 × 9,952.68
  4. Step 4: Simplify right side
    15,917.50x = 218,623,156.58
  5. Step 5: Solve for x
    x = 218,623,156.58/15,917.50
  6. Step 6: Final answer
    x = 13,734.77

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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.