Home / 18,925.58-26,120.38-10,972.42

Finding the Fourth Proportional to 18,925.58, 26,120.38 and 10,972.42

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Solution

The fourth proportional to 18,925.58, 26,120.38 and 10,972.42 is: 15,143.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,925.58 : 26,120.38 = 10,972.42 : x
  2. Step 2: Convert to fraction form
    18,925.58/26,120.38 = 10,972.42/x
  3. Step 3: Cross multiply
    18,925.58x = 26,120.38 × 10,972.42
  4. Step 4: Simplify right side
    18,925.58x = 286,603,779.92
  5. Step 5: Solve for x
    x = 286,603,779.92/18,925.58
  6. Step 6: Final answer
    x = 15,143.73

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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.