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Finding the Fourth Proportional to 9,340.80, 12,891.51 and 5,363.34

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Solution

The fourth proportional to 9,340.80, 12,891.51 and 5,363.34 is: 7,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,340.80 : 12,891.51 = 5,363.34 : x
  2. Step 2: Convert to fraction form
    9,340.80/12,891.51 = 5,363.34/x
  3. Step 3: Cross multiply
    9,340.80x = 12,891.51 × 5,363.34
  4. Step 4: Simplify right side
    9,340.80x = 69,141,551.24
  5. Step 5: Solve for x
    x = 69,141,551.24/9,340.80
  6. Step 6: Final answer
    x = 7,402.10

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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.