Home / 10,955.68-16,421.20-5,397.26

Finding the Fourth Proportional to 10,955.68, 16,421.20 and 5,397.26

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Solution

The fourth proportional to 10,955.68, 16,421.20 and 5,397.26 is: 8,089.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.68 : 16,421.20 = 5,397.26 : x
  2. Step 2: Convert to fraction form
    10,955.68/16,421.20 = 5,397.26/x
  3. Step 3: Cross multiply
    10,955.68x = 16,421.20 × 5,397.26
  4. Step 4: Simplify right side
    10,955.68x = 88,629,390.31
  5. Step 5: Solve for x
    x = 88,629,390.31/10,955.68
  6. Step 6: Final answer
    x = 8,089.81

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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.