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Finding the Fourth Proportional to 12,910.60, 19,347.43 and 7,352.47

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Solution

The fourth proportional to 12,910.60, 19,347.43 and 7,352.47 is: 11,018.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.60 : 19,347.43 = 7,352.47 : x
  2. Step 2: Convert to fraction form
    12,910.60/19,347.43 = 7,352.47/x
  3. Step 3: Cross multiply
    12,910.60x = 19,347.43 × 7,352.47
  4. Step 4: Simplify right side
    12,910.60x = 142,251,398.65
  5. Step 5: Solve for x
    x = 142,251,398.65/12,910.60
  6. Step 6: Final answer
    x = 11,018.19

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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.