Home / 9,947.63-13,728.01-5,471.66

Finding the Fourth Proportional to 9,947.63, 13,728.01 and 5,471.66

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Solution

The fourth proportional to 9,947.63, 13,728.01 and 5,471.66 is: 7,551.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,947.63 : 13,728.01 = 5,471.66 : x
  2. Step 2: Convert to fraction form
    9,947.63/13,728.01 = 5,471.66/x
  3. Step 3: Cross multiply
    9,947.63x = 13,728.01 × 5,471.66
  4. Step 4: Simplify right side
    9,947.63x = 75,115,023.84
  5. Step 5: Solve for x
    x = 75,115,023.84/9,947.63
  6. Step 6: Final answer
    x = 7,551.05

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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.