Home / 26,436.80-39,660.60-8,908.40

Finding the Fourth Proportional to 26,436.80, 39,660.60 and 8,908.40

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Solution

The fourth proportional to 26,436.80, 39,660.60 and 8,908.40 is: 13,364.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,436.80 : 39,660.60 = 8,908.40 : x
  2. Step 2: Convert to fraction form
    26,436.80/39,660.60 = 8,908.40/x
  3. Step 3: Cross multiply
    26,436.80x = 39,660.60 × 8,908.40
  4. Step 4: Simplify right side
    26,436.80x = 353,312,489.04
  5. Step 5: Solve for x
    x = 353,312,489.04/26,436.80
  6. Step 6: Final answer
    x = 13,364.42

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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.