Home / 16,780.74-23,151.66-10,405.04

Finding the Fourth Proportional to 16,780.74, 23,151.66 and 10,405.04

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Solution

The fourth proportional to 16,780.74, 23,151.66 and 10,405.04 is: 14,355.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,780.74 : 23,151.66 = 10,405.04 : x
  2. Step 2: Convert to fraction form
    16,780.74/23,151.66 = 10,405.04/x
  3. Step 3: Cross multiply
    16,780.74x = 23,151.66 × 10,405.04
  4. Step 4: Simplify right side
    16,780.74x = 240,893,865.79
  5. Step 5: Solve for x
    x = 240,893,865.79/16,780.74
  6. Step 6: Final answer
    x = 14,355.38

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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.