Home / 10,343.39-15,515.15-3,417.89

Finding the Fourth Proportional to 10,343.39, 15,515.15 and 3,417.89

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Solution

The fourth proportional to 10,343.39, 15,515.15 and 3,417.89 is: 5,126.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,343.39 : 15,515.15 = 3,417.89 : x
  2. Step 2: Convert to fraction form
    10,343.39/15,515.15 = 3,417.89/x
  3. Step 3: Cross multiply
    10,343.39x = 15,515.15 × 3,417.89
  4. Step 4: Simplify right side
    10,343.39x = 53,028,981.37
  5. Step 5: Solve for x
    x = 53,028,981.37/10,343.39
  6. Step 6: Final answer
    x = 5,126.85

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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.