Home / 15,268.55-21,074.78-9,300.17

Finding the Fourth Proportional to 15,268.55, 21,074.78 and 9,300.17

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Solution

The fourth proportional to 15,268.55, 21,074.78 and 9,300.17 is: 12,836.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,268.55 : 21,074.78 = 9,300.17 : x
  2. Step 2: Convert to fraction form
    15,268.55/21,074.78 = 9,300.17/x
  3. Step 3: Cross multiply
    15,268.55x = 21,074.78 × 9,300.17
  4. Step 4: Simplify right side
    15,268.55x = 195,998,884.84
  5. Step 5: Solve for x
    x = 195,998,884.84/15,268.55
  6. Step 6: Final answer
    x = 12,836.78

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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.