Home / 26,008.80-39,013.08-8,478.60

Finding the Fourth Proportional to 26,008.80, 39,013.08 and 8,478.60

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Solution

The fourth proportional to 26,008.80, 39,013.08 and 8,478.60 is: 12,717.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,008.80 : 39,013.08 = 8,478.60 : x
  2. Step 2: Convert to fraction form
    26,008.80/39,013.08 = 8,478.60/x
  3. Step 3: Cross multiply
    26,008.80x = 39,013.08 × 8,478.60
  4. Step 4: Simplify right side
    26,008.80x = 330,776,300.09
  5. Step 5: Solve for x
    x = 330,776,300.09/26,008.80
  6. Step 6: Final answer
    x = 12,717.86

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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.