Home / 13,149.40-19,730.20-5,752.89

Finding the Fourth Proportional to 13,149.40, 19,730.20 and 5,752.89

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Solution

The fourth proportional to 13,149.40, 19,730.20 and 5,752.89 is: 8,632.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.40 : 19,730.20 = 5,752.89 : x
  2. Step 2: Convert to fraction form
    13,149.40/19,730.20 = 5,752.89/x
  3. Step 3: Cross multiply
    13,149.40x = 19,730.20 × 5,752.89
  4. Step 4: Simplify right side
    13,149.40x = 113,505,635.33
  5. Step 5: Solve for x
    x = 113,505,635.33/13,149.40
  6. Step 6: Final answer
    x = 8,632.00

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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.