Home / 10,503.98-15,758.70-3,930.68

Finding the Fourth Proportional to 10,503.98, 15,758.70 and 3,930.68

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Solution

The fourth proportional to 10,503.98, 15,758.70 and 3,930.68 is: 5,897.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,503.98 : 15,758.70 = 3,930.68 : x
  2. Step 2: Convert to fraction form
    10,503.98/15,758.70 = 3,930.68/x
  3. Step 3: Cross multiply
    10,503.98x = 15,758.70 × 3,930.68
  4. Step 4: Simplify right side
    10,503.98x = 61,942,406.92
  5. Step 5: Solve for x
    x = 61,942,406.92/10,503.98
  6. Step 6: Final answer
    x = 5,897.04

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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.