Home / 14,695.14-20,279.18-7,980.64

Finding the Fourth Proportional to 14,695.14, 20,279.18 and 7,980.64

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Solution

The fourth proportional to 14,695.14, 20,279.18 and 7,980.64 is: 11,013.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,695.14 : 20,279.18 = 7,980.64 : x
  2. Step 2: Convert to fraction form
    14,695.14/20,279.18 = 7,980.64/x
  3. Step 3: Cross multiply
    14,695.14x = 20,279.18 × 7,980.64
  4. Step 4: Simplify right side
    14,695.14x = 161,840,835.08
  5. Step 5: Solve for x
    x = 161,840,835.08/14,695.14
  6. Step 6: Final answer
    x = 11,013.22

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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.