Home / 11,140.02-15,364.57-6,662.89

Finding the Fourth Proportional to 11,140.02, 15,364.57 and 6,662.89

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Solution

The fourth proportional to 11,140.02, 15,364.57 and 6,662.89 is: 9,189.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.02 : 15,364.57 = 6,662.89 : x
  2. Step 2: Convert to fraction form
    11,140.02/15,364.57 = 6,662.89/x
  3. Step 3: Cross multiply
    11,140.02x = 15,364.57 × 6,662.89
  4. Step 4: Simplify right side
    11,140.02x = 102,372,439.81
  5. Step 5: Solve for x
    x = 102,372,439.81/11,140.02
  6. Step 6: Final answer
    x = 9,189.61

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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.