Home / 13,044.08-18,000.96-7,378.80

Finding the Fourth Proportional to 13,044.08, 18,000.96 and 7,378.80

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Solution

The fourth proportional to 13,044.08, 18,000.96 and 7,378.80 is: 10,182.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,044.08 : 18,000.96 = 7,378.80 : x
  2. Step 2: Convert to fraction form
    13,044.08/18,000.96 = 7,378.80/x
  3. Step 3: Cross multiply
    13,044.08x = 18,000.96 × 7,378.80
  4. Step 4: Simplify right side
    13,044.08x = 132,825,483.65
  5. Step 5: Solve for x
    x = 132,825,483.65/13,044.08
  6. Step 6: Final answer
    x = 10,182.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.