Home / 12,645.45-17,450.52-6,980.76

Finding the Fourth Proportional to 12,645.45, 17,450.52 and 6,980.76

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Solution

The fourth proportional to 12,645.45, 17,450.52 and 6,980.76 is: 9,633.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.45 : 17,450.52 = 6,980.76 : x
  2. Step 2: Convert to fraction form
    12,645.45/17,450.52 = 6,980.76/x
  3. Step 3: Cross multiply
    12,645.45x = 17,450.52 × 6,980.76
  4. Step 4: Simplify right side
    12,645.45x = 121,817,892.00
  5. Step 5: Solve for x
    x = 121,817,892.00/12,645.45
  6. Step 6: Final answer
    x = 9,633.34

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Double scale
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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.