Home / 13,274.89-18,319.14-7,306.58

Finding the Fourth Proportional to 13,274.89, 18,319.14 and 7,306.58

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Solution

The fourth proportional to 13,274.89, 18,319.14 and 7,306.58 is: 10,082.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.89 : 18,319.14 = 7,306.58 : x
  2. Step 2: Convert to fraction form
    13,274.89/18,319.14 = 7,306.58/x
  3. Step 3: Cross multiply
    13,274.89x = 18,319.14 × 7,306.58
  4. Step 4: Simplify right side
    13,274.89x = 133,850,307.74
  5. Step 5: Solve for x
    x = 133,850,307.74/13,274.89
  6. Step 6: Final answer
    x = 10,082.97

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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.