Home / 15,268.68-21,069.78-8,462.28

Finding the Fourth Proportional to 15,268.68, 21,069.78 and 8,462.28

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Solution

The fourth proportional to 15,268.68, 21,069.78 and 8,462.28 is: 11,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,268.68 : 21,069.78 = 8,462.28 : x
  2. Step 2: Convert to fraction form
    15,268.68/21,069.78 = 8,462.28/x
  3. Step 3: Cross multiply
    15,268.68x = 21,069.78 × 8,462.28
  4. Step 4: Simplify right side
    15,268.68x = 178,298,377.90
  5. Step 5: Solve for x
    x = 178,298,377.90/15,268.68
  6. Step 6: Final answer
    x = 11,677.39

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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.