Home / 12,895.40-19,344.90-5,499.80

Finding the Fourth Proportional to 12,895.40, 19,344.90 and 5,499.80

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Solution

The fourth proportional to 12,895.40, 19,344.90 and 5,499.80 is: 8,250.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.40 : 19,344.90 = 5,499.80 : x
  2. Step 2: Convert to fraction form
    12,895.40/19,344.90 = 5,499.80/x
  3. Step 3: Cross multiply
    12,895.40x = 19,344.90 × 5,499.80
  4. Step 4: Simplify right side
    12,895.40x = 106,393,081.02
  5. Step 5: Solve for x
    x = 106,393,081.02/12,895.40
  6. Step 6: Final answer
    x = 8,250.47

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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.