Home / 12,257.08-18,385.63-7,328.13

Finding the Fourth Proportional to 12,257.08, 18,385.63 and 7,328.13

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Solution

The fourth proportional to 12,257.08, 18,385.63 and 7,328.13 is: 10,992.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.08 : 18,385.63 = 7,328.13 : x
  2. Step 2: Convert to fraction form
    12,257.08/18,385.63 = 7,328.13/x
  3. Step 3: Cross multiply
    12,257.08x = 18,385.63 × 7,328.13
  4. Step 4: Simplify right side
    12,257.08x = 134,732,286.77
  5. Step 5: Solve for x
    x = 134,732,286.77/12,257.08
  6. Step 6: Final answer
    x = 10,992.20

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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.