Home / 10,283.19-15,408.62-7,948.91

Finding the Fourth Proportional to 10,283.19, 15,408.62 and 7,948.91

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Solution

The fourth proportional to 10,283.19, 15,408.62 and 7,948.91 is: 11,910.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,283.19 : 15,408.62 = 7,948.91 : x
  2. Step 2: Convert to fraction form
    10,283.19/15,408.62 = 7,948.91/x
  3. Step 3: Cross multiply
    10,283.19x = 15,408.62 × 7,948.91
  4. Step 4: Simplify right side
    10,283.19x = 122,481,762.19
  5. Step 5: Solve for x
    x = 122,481,762.19/10,283.19
  6. Step 6: Final answer
    x = 11,910.88

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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.