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Finding the Fourth Proportional to 12,393.40, 17,095.11 and 7,354.06

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Solution

The fourth proportional to 12,393.40, 17,095.11 and 7,354.06 is: 10,143.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.40 : 17,095.11 = 7,354.06 : x
  2. Step 2: Convert to fraction form
    12,393.40/17,095.11 = 7,354.06/x
  3. Step 3: Cross multiply
    12,393.40x = 17,095.11 × 7,354.06
  4. Step 4: Simplify right side
    12,393.40x = 125,718,464.65
  5. Step 5: Solve for x
    x = 125,718,464.65/12,393.40
  6. Step 6: Final answer
    x = 10,143.99

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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.