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Finding the Fourth Proportional to 12,750.73, 19,104.52 and 7,810.06

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Solution

The fourth proportional to 12,750.73, 19,104.52 and 7,810.06 is: 11,701.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.73 : 19,104.52 = 7,810.06 : x
  2. Step 2: Convert to fraction form
    12,750.73/19,104.52 = 7,810.06/x
  3. Step 3: Cross multiply
    12,750.73x = 19,104.52 × 7,810.06
  4. Step 4: Simplify right side
    12,750.73x = 149,207,447.47
  5. Step 5: Solve for x
    x = 149,207,447.47/12,750.73
  6. Step 6: Final answer
    x = 11,701.87

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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.