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Finding the Fourth Proportional to 18,205.80, 27,316.80 and 6,527.40

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Solution

The fourth proportional to 18,205.80, 27,316.80 and 6,527.40 is: 9,794.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,205.80 : 27,316.80 = 6,527.40 : x
  2. Step 2: Convert to fraction form
    18,205.80/27,316.80 = 6,527.40/x
  3. Step 3: Cross multiply
    18,205.80x = 27,316.80 × 6,527.40
  4. Step 4: Simplify right side
    18,205.80x = 178,307,680.32
  5. Step 5: Solve for x
    x = 178,307,680.32/18,205.80
  6. Step 6: Final answer
    x = 9,794.00

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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.