Home / 17,928.32-26,862.57-12,654.68

Finding the Fourth Proportional to 17,928.32, 26,862.57 and 12,654.68

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Solution

The fourth proportional to 17,928.32, 26,862.57 and 12,654.68 is: 18,960.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,928.32 : 26,862.57 = 12,654.68 : x
  2. Step 2: Convert to fraction form
    17,928.32/26,862.57 = 12,654.68/x
  3. Step 3: Cross multiply
    17,928.32x = 26,862.57 × 12,654.68
  4. Step 4: Simplify right side
    17,928.32x = 339,937,093.01
  5. Step 5: Solve for x
    x = 339,937,093.01/17,928.32
  6. Step 6: Final answer
    x = 18,960.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.