Home / 13,964.60-20,947.21-5,643.07

Finding the Fourth Proportional to 13,964.60, 20,947.21 and 5,643.07

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Solution

The fourth proportional to 13,964.60, 20,947.21 and 5,643.07 is: 8,464.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,964.60 : 20,947.21 = 5,643.07 : x
  2. Step 2: Convert to fraction form
    13,964.60/20,947.21 = 5,643.07/x
  3. Step 3: Cross multiply
    13,964.60x = 20,947.21 × 5,643.07
  4. Step 4: Simplify right side
    13,964.60x = 118,206,505.86
  5. Step 5: Solve for x
    x = 118,206,505.86/13,964.60
  6. Step 6: Final answer
    x = 8,464.72

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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.