Home / 12,135.25-16,742.10-7,097.86

Finding the Fourth Proportional to 12,135.25, 16,742.10 and 7,097.86

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Solution

The fourth proportional to 12,135.25, 16,742.10 and 7,097.86 is: 9,792.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.25 : 16,742.10 = 7,097.86 : x
  2. Step 2: Convert to fraction form
    12,135.25/16,742.10 = 7,097.86/x
  3. Step 3: Cross multiply
    12,135.25x = 16,742.10 × 7,097.86
  4. Step 4: Simplify right side
    12,135.25x = 118,833,081.91
  5. Step 5: Solve for x
    x = 118,833,081.91/12,135.25
  6. Step 6: Final answer
    x = 9,792.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.