Home / 12,109.26-18,166.05-4,717.74

Finding the Fourth Proportional to 12,109.26, 18,166.05 and 4,717.74

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Solution

The fourth proportional to 12,109.26, 18,166.05 and 4,717.74 is: 7,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109.26 : 18,166.05 = 4,717.74 : x
  2. Step 2: Convert to fraction form
    12,109.26/18,166.05 = 4,717.74/x
  3. Step 3: Cross multiply
    12,109.26x = 18,166.05 × 4,717.74
  4. Step 4: Simplify right side
    12,109.26x = 85,702,700.73
  5. Step 5: Solve for x
    x = 85,702,700.73/12,109.26
  6. Step 6: Final answer
    x = 7,077.45

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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.