Home / 13,154.78-19,732.20-5,364.20

Finding the Fourth Proportional to 13,154.78, 19,732.20 and 5,364.20

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Solution

The fourth proportional to 13,154.78, 19,732.20 and 5,364.20 is: 8,046.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.78 : 19,732.20 = 5,364.20 : x
  2. Step 2: Convert to fraction form
    13,154.78/19,732.20 = 5,364.20/x
  3. Step 3: Cross multiply
    13,154.78x = 19,732.20 × 5,364.20
  4. Step 4: Simplify right side
    13,154.78x = 105,847,467.24
  5. Step 5: Solve for x
    x = 105,847,467.24/13,154.78
  6. Step 6: Final answer
    x = 8,046.31

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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.