Home / 6,900.12-10,350.27-1,969.76

Finding the Fourth Proportional to 6,900.12, 10,350.27 and 1,969.76

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Solution

The fourth proportional to 6,900.12, 10,350.27 and 1,969.76 is: 2,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,900.12 : 10,350.27 = 1,969.76 : x
  2. Step 2: Convert to fraction form
    6,900.12/10,350.27 = 1,969.76/x
  3. Step 3: Cross multiply
    6,900.12x = 10,350.27 × 1,969.76
  4. Step 4: Simplify right side
    6,900.12x = 20,387,496.08
  5. Step 5: Solve for x
    x = 20,387,496.08/6,900.12
  6. Step 6: Final answer
    x = 2,954.66

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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.