Home / 14,695.41-20,279.55-7,980.96

Finding the Fourth Proportional to 14,695.41, 20,279.55 and 7,980.96

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Solution

The fourth proportional to 14,695.41, 20,279.55 and 7,980.96 is: 11,013.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,695.41 : 20,279.55 = 7,980.96 : x
  2. Step 2: Convert to fraction form
    14,695.41/20,279.55 = 7,980.96/x
  3. Step 3: Cross multiply
    14,695.41x = 20,279.55 × 7,980.96
  4. Step 4: Simplify right side
    14,695.41x = 161,850,277.37
  5. Step 5: Solve for x
    x = 161,850,277.37/14,695.41
  6. Step 6: Final answer
    x = 11,013.66

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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.