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Finding the Fourth Proportional to 12,102.32, 16,703.02 and 7,389.32

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Solution

The fourth proportional to 12,102.32, 16,703.02 and 7,389.32 is: 10,198.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102.32 : 16,703.02 = 7,389.32 : x
  2. Step 2: Convert to fraction form
    12,102.32/16,703.02 = 7,389.32/x
  3. Step 3: Cross multiply
    12,102.32x = 16,703.02 × 7,389.32
  4. Step 4: Simplify right side
    12,102.32x = 123,423,959.75
  5. Step 5: Solve for x
    x = 123,423,959.75/12,102.32
  6. Step 6: Final answer
    x = 10,198.37

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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.