Home / 19,419.45-26,778.92-13,752.69

Finding the Fourth Proportional to 19,419.45, 26,778.92 and 13,752.69

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Solution

The fourth proportional to 19,419.45, 26,778.92 and 13,752.69 is: 18,964.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.45 : 26,778.92 = 13,752.69 : x
  2. Step 2: Convert to fraction form
    19,419.45/26,778.92 = 13,752.69/x
  3. Step 3: Cross multiply
    19,419.45x = 26,778.92 × 13,752.69
  4. Step 4: Simplify right side
    19,419.45x = 368,282,116.53
  5. Step 5: Solve for x
    x = 368,282,116.53/19,419.45
  6. Step 6: Final answer
    x = 18,964.60

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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.