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Finding the Fourth Proportional to 12,033.80, 18,130.95 and 10,865.12

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Solution

The fourth proportional to 12,033.80, 18,130.95 and 10,865.12 is: 16,370.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,033.80 : 18,130.95 = 10,865.12 : x
  2. Step 2: Convert to fraction form
    12,033.80/18,130.95 = 10,865.12/x
  3. Step 3: Cross multiply
    12,033.80x = 18,130.95 × 10,865.12
  4. Step 4: Simplify right side
    12,033.80x = 196,994,947.46
  5. Step 5: Solve for x
    x = 196,994,947.46/12,033.80
  6. Step 6: Final answer
    x = 16,370.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.