Home / 10,119.40-13,964.26-5,643.64

Finding the Fourth Proportional to 10,119.40, 13,964.26 and 5,643.64

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Solution

The fourth proportional to 10,119.40, 13,964.26 and 5,643.64 is: 7,787.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.40 : 13,964.26 = 5,643.64 : x
  2. Step 2: Convert to fraction form
    10,119.40/13,964.26 = 5,643.64/x
  3. Step 3: Cross multiply
    10,119.40x = 13,964.26 × 5,643.64
  4. Step 4: Simplify right side
    10,119.40x = 78,809,256.31
  5. Step 5: Solve for x
    x = 78,809,256.31/10,119.40
  6. Step 6: Final answer
    x = 7,787.94

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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.