Home / 12,140.66-16,756.34-7,104.57

Finding the Fourth Proportional to 12,140.66, 16,756.34 and 7,104.57

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Solution

The fourth proportional to 12,140.66, 16,756.34 and 7,104.57 is: 9,805.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140.66 : 16,756.34 = 7,104.57 : x
  2. Step 2: Convert to fraction form
    12,140.66/16,756.34 = 7,104.57/x
  3. Step 3: Cross multiply
    12,140.66x = 16,756.34 × 7,104.57
  4. Step 4: Simplify right side
    12,140.66x = 119,046,554.95
  5. Step 5: Solve for x
    x = 119,046,554.95/12,140.66
  6. Step 6: Final answer
    x = 9,805.61

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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.