Home / 10,400.87-15,600.70-3,005.17

Finding the Fourth Proportional to 10,400.87, 15,600.70 and 3,005.17

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Solution

The fourth proportional to 10,400.87, 15,600.70 and 3,005.17 is: 4,507.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.87 : 15,600.70 = 3,005.17 : x
  2. Step 2: Convert to fraction form
    10,400.87/15,600.70 = 3,005.17/x
  3. Step 3: Cross multiply
    10,400.87x = 15,600.70 × 3,005.17
  4. Step 4: Simplify right side
    10,400.87x = 46,882,720.37
  5. Step 5: Solve for x
    x = 46,882,720.37/10,400.87
  6. Step 6: Final answer
    x = 4,507.58

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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.