Home / 10,950.21-15,106.70-7,168.66

Finding the Fourth Proportional to 10,950.21, 15,106.70 and 7,168.66

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Solution

The fourth proportional to 10,950.21, 15,106.70 and 7,168.66 is: 9,889.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,950.21 : 15,106.70 = 7,168.66 : x
  2. Step 2: Convert to fraction form
    10,950.21/15,106.70 = 7,168.66/x
  3. Step 3: Cross multiply
    10,950.21x = 15,106.70 × 7,168.66
  4. Step 4: Simplify right side
    10,950.21x = 108,294,834.60
  5. Step 5: Solve for x
    x = 108,294,834.60/10,950.21
  6. Step 6: Final answer
    x = 9,889.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.