Home / 10,286.28-15,427.01-2,891.45

Finding the Fourth Proportional to 10,286.28, 15,427.01 and 2,891.45

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Solution

The fourth proportional to 10,286.28, 15,427.01 and 2,891.45 is: 4,336.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.28 : 15,427.01 = 2,891.45 : x
  2. Step 2: Convert to fraction form
    10,286.28/15,427.01 = 2,891.45/x
  3. Step 3: Cross multiply
    10,286.28x = 15,427.01 × 2,891.45
  4. Step 4: Simplify right side
    10,286.28x = 44,606,428.06
  5. Step 5: Solve for x
    x = 44,606,428.06/10,286.28
  6. Step 6: Final answer
    x = 4,336.50

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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.