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Finding the Fourth Proportional to 18,346.80, 27,465.53 and 10,947.45

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Solution

The fourth proportional to 18,346.80, 27,465.53 and 10,947.45 is: 16,388.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,346.80 : 27,465.53 = 10,947.45 : x
  2. Step 2: Convert to fraction form
    18,346.80/27,465.53 = 10,947.45/x
  3. Step 3: Cross multiply
    18,346.80x = 27,465.53 × 10,947.45
  4. Step 4: Simplify right side
    18,346.80x = 300,677,461.66
  5. Step 5: Solve for x
    x = 300,677,461.66/18,346.80
  6. Step 6: Final answer
    x = 16,388.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.