Home / 13,165.20-19,747.38-5,263.80

Finding the Fourth Proportional to 13,165.20, 19,747.38 and 5,263.80

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Solution

The fourth proportional to 13,165.20, 19,747.38 and 5,263.80 is: 7,895.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.20 : 19,747.38 = 5,263.80 : x
  2. Step 2: Convert to fraction form
    13,165.20/19,747.38 = 5,263.80/x
  3. Step 3: Cross multiply
    13,165.20x = 19,747.38 × 5,263.80
  4. Step 4: Simplify right side
    13,165.20x = 103,946,258.84
  5. Step 5: Solve for x
    x = 103,946,258.84/13,165.20
  6. Step 6: Final answer
    x = 7,895.53

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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.