Home / 10,315.50-15,473.25-3,390.54

Finding the Fourth Proportional to 10,315.50, 15,473.25 and 3,390.54

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Solution

The fourth proportional to 10,315.50, 15,473.25 and 3,390.54 is: 5,085.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.50 : 15,473.25 = 3,390.54 : x
  2. Step 2: Convert to fraction form
    10,315.50/15,473.25 = 3,390.54/x
  3. Step 3: Cross multiply
    10,315.50x = 15,473.25 × 3,390.54
  4. Step 4: Simplify right side
    10,315.50x = 52,462,673.06
  5. Step 5: Solve for x
    x = 52,462,673.06/10,315.50
  6. Step 6: Final answer
    x = 5,085.81

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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.