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Finding the Fourth Proportional to 9,362.81, 12,937.79 and 8,907.23

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Solution

The fourth proportional to 9,362.81, 12,937.79 and 8,907.23 is: 12,308.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,362.81 : 12,937.79 = 8,907.23 : x
  2. Step 2: Convert to fraction form
    9,362.81/12,937.79 = 8,907.23/x
  3. Step 3: Cross multiply
    9,362.81x = 12,937.79 × 8,907.23
  4. Step 4: Simplify right side
    9,362.81x = 115,239,871.22
  5. Step 5: Solve for x
    x = 115,239,871.22/9,362.81
  6. Step 6: Final answer
    x = 12,308.26

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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.