Home / 26,309.40-39,466.62-8,780.46

Finding the Fourth Proportional to 26,309.40, 39,466.62 and 8,780.46

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Solution

The fourth proportional to 26,309.40, 39,466.62 and 8,780.46 is: 13,171.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,309.40 : 39,466.62 = 8,780.46 : x
  2. Step 2: Convert to fraction form
    26,309.40/39,466.62 = 8,780.46/x
  3. Step 3: Cross multiply
    26,309.40x = 39,466.62 × 8,780.46
  4. Step 4: Simplify right side
    26,309.40x = 346,535,078.25
  5. Step 5: Solve for x
    x = 346,535,078.25/26,309.40
  6. Step 6: Final answer
    x = 13,171.53

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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.