Home / 12,058.80-16,639.20-6,753.60

Finding the Fourth Proportional to 12,058.80, 16,639.20 and 6,753.60

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Solution

The fourth proportional to 12,058.80, 16,639.20 and 6,753.60 is: 9,318.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,058.80 : 16,639.20 = 6,753.60 : x
  2. Step 2: Convert to fraction form
    12,058.80/16,639.20 = 6,753.60/x
  3. Step 3: Cross multiply
    12,058.80x = 16,639.20 × 6,753.60
  4. Step 4: Simplify right side
    12,058.80x = 112,374,501.12
  5. Step 5: Solve for x
    x = 112,374,501.12/12,058.80
  6. Step 6: Final answer
    x = 9,318.88

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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.