Home / 13,340.62-19,972.05-12,835.18

Finding the Fourth Proportional to 13,340.62, 19,972.05 and 12,835.18

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Solution

The fourth proportional to 13,340.62, 19,972.05 and 12,835.18 is: 19,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.62 : 19,972.05 = 12,835.18 : x
  2. Step 2: Convert to fraction form
    13,340.62/19,972.05 = 12,835.18/x
  3. Step 3: Cross multiply
    13,340.62x = 19,972.05 × 12,835.18
  4. Step 4: Simplify right side
    13,340.62x = 256,344,856.72
  5. Step 5: Solve for x
    x = 256,344,856.72/13,340.62
  6. Step 6: Final answer
    x = 19,215.36

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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.