Home / 26,605.60-39,901.20-7,885.60

Finding the Fourth Proportional to 26,605.60, 39,901.20 and 7,885.60

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Solution

The fourth proportional to 26,605.60, 39,901.20 and 7,885.60 is: 11,826.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,605.60 : 39,901.20 = 7,885.60 : x
  2. Step 2: Convert to fraction form
    26,605.60/39,901.20 = 7,885.60/x
  3. Step 3: Cross multiply
    26,605.60x = 39,901.20 × 7,885.60
  4. Step 4: Simplify right side
    26,605.60x = 314,644,902.72
  5. Step 5: Solve for x
    x = 314,644,902.72/26,605.60
  6. Step 6: Final answer
    x = 11,826.27

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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.