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Finding the Fourth Proportional to 12,387.76, 17,094.86 and 7,010.14

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Solution

The fourth proportional to 12,387.76, 17,094.86 and 7,010.14 is: 9,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.76 : 17,094.86 = 7,010.14 : x
  2. Step 2: Convert to fraction form
    12,387.76/17,094.86 = 7,010.14/x
  3. Step 3: Cross multiply
    12,387.76x = 17,094.86 × 7,010.14
  4. Step 4: Simplify right side
    12,387.76x = 119,837,361.88
  5. Step 5: Solve for x
    x = 119,837,361.88/12,387.76
  6. Step 6: Final answer
    x = 9,673.85

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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.