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Finding the Fourth Proportional to 18,065.77, 27,103.12 and 6,219.74

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Solution

The fourth proportional to 18,065.77, 27,103.12 and 6,219.74 is: 9,331.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.77 : 27,103.12 = 6,219.74 : x
  2. Step 2: Convert to fraction form
    18,065.77/27,103.12 = 6,219.74/x
  3. Step 3: Cross multiply
    18,065.77x = 27,103.12 × 6,219.74
  4. Step 4: Simplify right side
    18,065.77x = 168,574,411.80
  5. Step 5: Solve for x
    x = 168,574,411.80/18,065.77
  6. Step 6: Final answer
    x = 9,331.15

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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.