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Finding the Fourth Proportional to 7,506.10, 11,259.15 and 3,126.70

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Solution

The fourth proportional to 7,506.10, 11,259.15 and 3,126.70 is: 4,690.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,506.10 : 11,259.15 = 3,126.70 : x
  2. Step 2: Convert to fraction form
    7,506.10/11,259.15 = 3,126.70/x
  3. Step 3: Cross multiply
    7,506.10x = 11,259.15 × 3,126.70
  4. Step 4: Simplify right side
    7,506.10x = 35,203,984.31
  5. Step 5: Solve for x
    x = 35,203,984.31/7,506.10
  6. Step 6: Final answer
    x = 4,690.05

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Similar ratio
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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.