Home / 12,342.60-18,513.90-7,093.80

Finding the Fourth Proportional to 12,342.60, 18,513.90 and 7,093.80

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Solution

The fourth proportional to 12,342.60, 18,513.90 and 7,093.80 is: 10,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.60 : 18,513.90 = 7,093.80 : x
  2. Step 2: Convert to fraction form
    12,342.60/18,513.90 = 7,093.80/x
  3. Step 3: Cross multiply
    12,342.60x = 18,513.90 × 7,093.80
  4. Step 4: Simplify right side
    12,342.60x = 131,333,903.82
  5. Step 5: Solve for x
    x = 131,333,903.82/12,342.60
  6. Step 6: Final answer
    x = 10,640.70

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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.