Home / 13,148.25-19,729.55-7,612.40

Finding the Fourth Proportional to 13,148.25, 19,729.55 and 7,612.40

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Solution

The fourth proportional to 13,148.25, 19,729.55 and 7,612.40 is: 11,422.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.25 : 19,729.55 = 7,612.40 : x
  2. Step 2: Convert to fraction form
    13,148.25/19,729.55 = 7,612.40/x
  3. Step 3: Cross multiply
    13,148.25x = 19,729.55 × 7,612.40
  4. Step 4: Simplify right side
    13,148.25x = 150,189,237.68
  5. Step 5: Solve for x
    x = 150,189,237.68/13,148.25
  6. Step 6: Final answer
    x = 11,422.76

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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.