Home / 12,017.12-18,027.76-5,355.99

Finding the Fourth Proportional to 12,017.12, 18,027.76 and 5,355.99

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Solution

The fourth proportional to 12,017.12, 18,027.76 and 5,355.99 is: 8,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,017.12 : 18,027.76 = 5,355.99 : x
  2. Step 2: Convert to fraction form
    12,017.12/18,027.76 = 5,355.99/x
  3. Step 3: Cross multiply
    12,017.12x = 18,027.76 × 5,355.99
  4. Step 4: Simplify right side
    12,017.12x = 96,556,385.36
  5. Step 5: Solve for x
    x = 96,556,385.36/12,017.12
  6. Step 6: Final answer
    x = 8,034.90

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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.