Home / 19,377.60-26,740.80-10,993.92

Finding the Fourth Proportional to 19,377.60, 26,740.80 and 10,993.92

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Solution

The fourth proportional to 19,377.60, 26,740.80 and 10,993.92 is: 15,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,377.60 : 26,740.80 = 10,993.92 : x
  2. Step 2: Convert to fraction form
    19,377.60/26,740.80 = 10,993.92/x
  3. Step 3: Cross multiply
    19,377.60x = 26,740.80 × 10,993.92
  4. Step 4: Simplify right side
    19,377.60x = 293,986,215.94
  5. Step 5: Solve for x
    x = 293,986,215.94/19,377.60
  6. Step 6: Final answer
    x = 15,171.45

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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.