Home / 12,529.14-17,287.83-7,810.62

Finding the Fourth Proportional to 12,529.14, 17,287.83 and 7,810.62

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Solution

The fourth proportional to 12,529.14, 17,287.83 and 7,810.62 is: 10,777.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.14 : 17,287.83 = 7,810.62 : x
  2. Step 2: Convert to fraction form
    12,529.14/17,287.83 = 7,810.62/x
  3. Step 3: Cross multiply
    12,529.14x = 17,287.83 × 7,810.62
  4. Step 4: Simplify right side
    12,529.14x = 135,028,670.75
  5. Step 5: Solve for x
    x = 135,028,670.75/12,529.14
  6. Step 6: Final answer
    x = 10,777.17

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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.