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Finding the Fourth Proportional to 11,335.90, 17,000.76 and 7,169.64

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Solution

The fourth proportional to 11,335.90, 17,000.76 and 7,169.64 is: 10,752.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,335.90 : 17,000.76 = 7,169.64 : x
  2. Step 2: Convert to fraction form
    11,335.90/17,000.76 = 7,169.64/x
  3. Step 3: Cross multiply
    11,335.90x = 17,000.76 × 7,169.64
  4. Step 4: Simplify right side
    11,335.90x = 121,889,328.93
  5. Step 5: Solve for x
    x = 121,889,328.93/11,335.90
  6. Step 6: Final answer
    x = 10,752.51

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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.