Home / 18,456.13-27,683.23-5,307.99

Finding the Fourth Proportional to 18,456.13, 27,683.23 and 5,307.99

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Solution

The fourth proportional to 18,456.13, 27,683.23 and 5,307.99 is: 7,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.13 : 27,683.23 = 5,307.99 : x
  2. Step 2: Convert to fraction form
    18,456.13/27,683.23 = 5,307.99/x
  3. Step 3: Cross multiply
    18,456.13x = 27,683.23 × 5,307.99
  4. Step 4: Simplify right side
    18,456.13x = 146,942,200.88
  5. Step 5: Solve for x
    x = 146,942,200.88/18,456.13
  6. Step 6: Final answer
    x = 7,961.70

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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.