Home / 13,242.98-18,275.36-7,274.76

Finding the Fourth Proportional to 13,242.98, 18,275.36 and 7,274.76

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Solution

The fourth proportional to 13,242.98, 18,275.36 and 7,274.76 is: 10,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.98 : 18,275.36 = 7,274.76 : x
  2. Step 2: Convert to fraction form
    13,242.98/18,275.36 = 7,274.76/x
  3. Step 3: Cross multiply
    13,242.98x = 18,275.36 × 7,274.76
  4. Step 4: Simplify right side
    13,242.98x = 132,948,821.54
  5. Step 5: Solve for x
    x = 132,948,821.54/13,242.98
  6. Step 6: Final answer
    x = 10,039.20

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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.