Home / 10,119.28-13,964.48-5,643.32

Finding the Fourth Proportional to 10,119.28, 13,964.48 and 5,643.32

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Solution

The fourth proportional to 10,119.28, 13,964.48 and 5,643.32 is: 7,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.28 : 13,964.48 = 5,643.32 : x
  2. Step 2: Convert to fraction form
    10,119.28/13,964.48 = 5,643.32/x
  3. Step 3: Cross multiply
    10,119.28x = 13,964.48 × 5,643.32
  4. Step 4: Simplify right side
    10,119.28x = 78,806,029.27
  5. Step 5: Solve for x
    x = 78,806,029.27/10,119.28
  6. Step 6: Final answer
    x = 7,787.71

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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.