Home / 9,406.20-14,109.30-8,312.70

Finding the Fourth Proportional to 9,406.20, 14,109.30 and 8,312.70

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Solution

The fourth proportional to 9,406.20, 14,109.30 and 8,312.70 is: 12,469.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,406.20 : 14,109.30 = 8,312.70 : x
  2. Step 2: Convert to fraction form
    9,406.20/14,109.30 = 8,312.70/x
  3. Step 3: Cross multiply
    9,406.20x = 14,109.30 × 8,312.70
  4. Step 4: Simplify right side
    9,406.20x = 117,286,378.11
  5. Step 5: Solve for x
    x = 117,286,378.11/9,406.20
  6. Step 6: Final answer
    x = 12,469.05

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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.