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Finding the Fourth Proportional to 9,141.14, 12,612.63 and 5,364.11

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Solution

The fourth proportional to 9,141.14, 12,612.63 and 5,364.11 is: 7,401.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,141.14 : 12,612.63 = 5,364.11 : x
  2. Step 2: Convert to fraction form
    9,141.14/12,612.63 = 5,364.11/x
  3. Step 3: Cross multiply
    9,141.14x = 12,612.63 × 5,364.11
  4. Step 4: Simplify right side
    9,141.14x = 67,655,471.65
  5. Step 5: Solve for x
    x = 67,655,471.65/9,141.14
  6. Step 6: Final answer
    x = 7,401.21

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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.