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Finding the Fourth Proportional to 13,010.66, 17,952.80 and 7,631.06

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Solution

The fourth proportional to 13,010.66, 17,952.80 and 7,631.06 is: 10,529.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.66 : 17,952.80 = 7,631.06 : x
  2. Step 2: Convert to fraction form
    13,010.66/17,952.80 = 7,631.06/x
  3. Step 3: Cross multiply
    13,010.66x = 17,952.80 × 7,631.06
  4. Step 4: Simplify right side
    13,010.66x = 136,998,893.97
  5. Step 5: Solve for x
    x = 136,998,893.97/13,010.66
  6. Step 6: Final answer
    x = 10,529.74

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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.