Home / 12,328.00-18,488.05-6,481.42

Finding the Fourth Proportional to 12,328.00, 18,488.05 and 6,481.42

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Solution

The fourth proportional to 12,328.00, 18,488.05 and 6,481.42 is: 9,720.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.00 : 18,488.05 = 6,481.42 : x
  2. Step 2: Convert to fraction form
    12,328.00/18,488.05 = 6,481.42/x
  3. Step 3: Cross multiply
    12,328.00x = 18,488.05 × 6,481.42
  4. Step 4: Simplify right side
    12,328.00x = 119,828,754.61
  5. Step 5: Solve for x
    x = 119,828,754.61/12,328.00
  6. Step 6: Final answer
    x = 9,720.05

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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.