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Finding the Fourth Proportional to 12,058.37, 16,641.12 and 7,278.21

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Solution

The fourth proportional to 12,058.37, 16,641.12 and 7,278.21 is: 10,044.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,058.37 : 16,641.12 = 7,278.21 : x
  2. Step 2: Convert to fraction form
    12,058.37/16,641.12 = 7,278.21/x
  3. Step 3: Cross multiply
    12,058.37x = 16,641.12 × 7,278.21
  4. Step 4: Simplify right side
    12,058.37x = 121,117,446.40
  5. Step 5: Solve for x
    x = 121,117,446.40/12,058.37
  6. Step 6: Final answer
    x = 10,044.27

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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.