Home / 26,331.20-39,483.20-7,860.80

Finding the Fourth Proportional to 26,331.20, 39,483.20 and 7,860.80

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Solution

The fourth proportional to 26,331.20, 39,483.20 and 7,860.80 is: 11,787.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,331.20 : 39,483.20 = 7,860.80 : x
  2. Step 2: Convert to fraction form
    26,331.20/39,483.20 = 7,860.80/x
  3. Step 3: Cross multiply
    26,331.20x = 39,483.20 × 7,860.80
  4. Step 4: Simplify right side
    26,331.20x = 310,369,538.56
  5. Step 5: Solve for x
    x = 310,369,538.56/26,331.20
  6. Step 6: Final answer
    x = 11,787.14

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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.