Home / 15,268.28-21,069.86-8,554.12

Finding the Fourth Proportional to 15,268.28, 21,069.86 and 8,554.12

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Solution

The fourth proportional to 15,268.28, 21,069.86 and 8,554.12 is: 11,804.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,268.28 : 21,069.86 = 8,554.12 : x
  2. Step 2: Convert to fraction form
    15,268.28/21,069.86 = 8,554.12/x
  3. Step 3: Cross multiply
    15,268.28x = 21,069.86 × 8,554.12
  4. Step 4: Simplify right side
    15,268.28x = 180,234,110.82
  5. Step 5: Solve for x
    x = 180,234,110.82/15,268.28
  6. Step 6: Final answer
    x = 11,804.48

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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.