Home / 13,888.20-19,165.60-7,600.56

Finding the Fourth Proportional to 13,888.20, 19,165.60 and 7,600.56

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Solution

The fourth proportional to 13,888.20, 19,165.60 and 7,600.56 is: 10,488.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.20 : 19,165.60 = 7,600.56 : x
  2. Step 2: Convert to fraction form
    13,888.20/19,165.60 = 7,600.56/x
  3. Step 3: Cross multiply
    13,888.20x = 19,165.60 × 7,600.56
  4. Step 4: Simplify right side
    13,888.20x = 145,669,292.74
  5. Step 5: Solve for x
    x = 145,669,292.74/13,888.20
  6. Step 6: Final answer
    x = 10,488.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.