Home / 12,058.28-16,642.43-8,278.35

Finding the Fourth Proportional to 12,058.28, 16,642.43 and 8,278.35

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Solution

The fourth proportional to 12,058.28, 16,642.43 and 8,278.35 is: 11,425.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,058.28 : 16,642.43 = 8,278.35 : x
  2. Step 2: Convert to fraction form
    12,058.28/16,642.43 = 8,278.35/x
  3. Step 3: Cross multiply
    12,058.28x = 16,642.43 × 8,278.35
  4. Step 4: Simplify right side
    12,058.28x = 137,771,819.00
  5. Step 5: Solve for x
    x = 137,771,819.00/12,058.28
  6. Step 6: Final answer
    x = 11,425.50

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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.