Home / 18,877.60-26,048.82-10,378.32

Finding the Fourth Proportional to 18,877.60, 26,048.82 and 10,378.32

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Solution

The fourth proportional to 18,877.60, 26,048.82 and 10,378.32 is: 14,320.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.60 : 26,048.82 = 10,378.32 : x
  2. Step 2: Convert to fraction form
    18,877.60/26,048.82 = 10,378.32/x
  3. Step 3: Cross multiply
    18,877.60x = 26,048.82 × 10,378.32
  4. Step 4: Simplify right side
    18,877.60x = 270,342,989.58
  5. Step 5: Solve for x
    x = 270,342,989.58/18,877.60
  6. Step 6: Final answer
    x = 14,320.83

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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.