Home / 13,134.20-19,701.56-7,327.76

Finding the Fourth Proportional to 13,134.20, 19,701.56 and 7,327.76

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Solution

The fourth proportional to 13,134.20, 19,701.56 and 7,327.76 is: 10,991.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.20 : 19,701.56 = 7,327.76 : x
  2. Step 2: Convert to fraction form
    13,134.20/19,701.56 = 7,327.76/x
  3. Step 3: Cross multiply
    13,134.20x = 19,701.56 × 7,327.76
  4. Step 4: Simplify right side
    13,134.20x = 144,368,303.31
  5. Step 5: Solve for x
    x = 144,368,303.31/13,134.20
  6. Step 6: Final answer
    x = 10,991.79

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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.