Home / 13,044.88-17,999.58-7,378.12

Finding the Fourth Proportional to 13,044.88, 17,999.58 and 7,378.12

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Solution

The fourth proportional to 13,044.88, 17,999.58 and 7,378.12 is: 10,180.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,044.88 : 17,999.58 = 7,378.12 : x
  2. Step 2: Convert to fraction form
    13,044.88/17,999.58 = 7,378.12/x
  3. Step 3: Cross multiply
    13,044.88x = 17,999.58 × 7,378.12
  4. Step 4: Simplify right side
    13,044.88x = 132,803,061.19
  5. Step 5: Solve for x
    x = 132,803,061.19/13,044.88
  6. Step 6: Final answer
    x = 10,180.47

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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.