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Finding the Fourth Proportional to 9,090.63, 13,617.86 and 7,003.40

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Solution

The fourth proportional to 9,090.63, 13,617.86 and 7,003.40 is: 10,491.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.63 : 13,617.86 = 7,003.40 : x
  2. Step 2: Convert to fraction form
    9,090.63/13,617.86 = 7,003.40/x
  3. Step 3: Cross multiply
    9,090.63x = 13,617.86 × 7,003.40
  4. Step 4: Simplify right side
    9,090.63x = 95,371,217.62
  5. Step 5: Solve for x
    x = 95,371,217.62/9,090.63
  6. Step 6: Final answer
    x = 10,491.16

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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.