Home / 10,518.06-15,775.11-3,942.84

Finding the Fourth Proportional to 10,518.06, 15,775.11 and 3,942.84

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Solution

The fourth proportional to 10,518.06, 15,775.11 and 3,942.84 is: 5,913.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.06 : 15,775.11 = 3,942.84 : x
  2. Step 2: Convert to fraction form
    10,518.06/15,775.11 = 3,942.84/x
  3. Step 3: Cross multiply
    10,518.06x = 15,775.11 × 3,942.84
  4. Step 4: Simplify right side
    10,518.06x = 62,198,734.71
  5. Step 5: Solve for x
    x = 62,198,734.71/10,518.06
  6. Step 6: Final answer
    x = 5,913.52

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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.