Home / 16,628.43-22,947.45-9,917.91

Finding the Fourth Proportional to 16,628.43, 22,947.45 and 9,917.91

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Solution

The fourth proportional to 16,628.43, 22,947.45 and 9,917.91 is: 13,686.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,628.43 : 22,947.45 = 9,917.91 : x
  2. Step 2: Convert to fraction form
    16,628.43/22,947.45 = 9,917.91/x
  3. Step 3: Cross multiply
    16,628.43x = 22,947.45 × 9,917.91
  4. Step 4: Simplify right side
    16,628.43x = 227,590,743.83
  5. Step 5: Solve for x
    x = 227,590,743.83/16,628.43
  6. Step 6: Final answer
    x = 13,686.84

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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.