Home / 9,645.76-13,311.30-5,667.40

Finding the Fourth Proportional to 9,645.76, 13,311.30 and 5,667.40

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Solution

The fourth proportional to 9,645.76, 13,311.30 and 5,667.40 is: 7,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,645.76 : 13,311.30 = 5,667.40 : x
  2. Step 2: Convert to fraction form
    9,645.76/13,311.30 = 5,667.40/x
  3. Step 3: Cross multiply
    9,645.76x = 13,311.30 × 5,667.40
  4. Step 4: Simplify right side
    9,645.76x = 75,440,461.62
  5. Step 5: Solve for x
    x = 75,440,461.62/9,645.76
  6. Step 6: Final answer
    x = 7,821.10

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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.