Home / 26,378.73-39,515.04-12,319.29

Finding the Fourth Proportional to 26,378.73, 39,515.04 and 12,319.29

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Solution

The fourth proportional to 26,378.73, 39,515.04 and 12,319.29 is: 18,454.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,378.73 : 39,515.04 = 12,319.29 : x
  2. Step 2: Convert to fraction form
    26,378.73/39,515.04 = 12,319.29/x
  3. Step 3: Cross multiply
    26,378.73x = 39,515.04 × 12,319.29
  4. Step 4: Simplify right side
    26,378.73x = 486,797,237.12
  5. Step 5: Solve for x
    x = 486,797,237.12/26,378.73
  6. Step 6: Final answer
    x = 18,454.16

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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.