Home / 18,355.61-27,534.55-5,209.01

Finding the Fourth Proportional to 18,355.61, 27,534.55 and 5,209.01

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Solution

The fourth proportional to 18,355.61, 27,534.55 and 5,209.01 is: 7,813.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,355.61 : 27,534.55 = 5,209.01 : x
  2. Step 2: Convert to fraction form
    18,355.61/27,534.55 = 5,209.01/x
  3. Step 3: Cross multiply
    18,355.61x = 27,534.55 × 5,209.01
  4. Step 4: Simplify right side
    18,355.61x = 143,427,595.60
  5. Step 5: Solve for x
    x = 143,427,595.60/18,355.61
  6. Step 6: Final answer
    x = 7,813.83

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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.