Home / 9,111.40-13,667.10-4,964.20

Finding the Fourth Proportional to 9,111.40, 13,667.10 and 4,964.20

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Solution

The fourth proportional to 9,111.40, 13,667.10 and 4,964.20 is: 7,446.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,111.40 : 13,667.10 = 4,964.20 : x
  2. Step 2: Convert to fraction form
    9,111.40/13,667.10 = 4,964.20/x
  3. Step 3: Cross multiply
    9,111.40x = 13,667.10 × 4,964.20
  4. Step 4: Simplify right side
    9,111.40x = 67,846,217.82
  5. Step 5: Solve for x
    x = 67,846,217.82/9,111.40
  6. Step 6: Final answer
    x = 7,446.30

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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.