Home / 14,631.56-20,190.08-8,257.58

Finding the Fourth Proportional to 14,631.56, 20,190.08 and 8,257.58

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Solution

The fourth proportional to 14,631.56, 20,190.08 and 8,257.58 is: 11,394.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.56 : 20,190.08 = 8,257.58 : x
  2. Step 2: Convert to fraction form
    14,631.56/20,190.08 = 8,257.58/x
  3. Step 3: Cross multiply
    14,631.56x = 20,190.08 × 8,257.58
  4. Step 4: Simplify right side
    14,631.56x = 166,721,058.57
  5. Step 5: Solve for x
    x = 166,721,058.57/14,631.56
  6. Step 6: Final answer
    x = 11,394.62

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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.