Home / 9,309.91-12,847.65-5,331.10

Finding the Fourth Proportional to 9,309.91, 12,847.65 and 5,331.10

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Solution

The fourth proportional to 9,309.91, 12,847.65 and 5,331.10 is: 7,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.91 : 12,847.65 = 5,331.10 : x
  2. Step 2: Convert to fraction form
    9,309.91/12,847.65 = 5,331.10/x
  3. Step 3: Cross multiply
    9,309.91x = 12,847.65 × 5,331.10
  4. Step 4: Simplify right side
    9,309.91x = 68,492,106.92
  5. Step 5: Solve for x
    x = 68,492,106.92/9,309.91
  6. Step 6: Final answer
    x = 7,356.90

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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.