Home / 12,670.23-19,005.34-3,905.14

Finding the Fourth Proportional to 12,670.23, 19,005.34 and 3,905.14

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Solution

The fourth proportional to 12,670.23, 19,005.34 and 3,905.14 is: 5,857.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.23 : 19,005.34 = 3,905.14 : x
  2. Step 2: Convert to fraction form
    12,670.23/19,005.34 = 3,905.14/x
  3. Step 3: Cross multiply
    12,670.23x = 19,005.34 × 3,905.14
  4. Step 4: Simplify right side
    12,670.23x = 74,218,398.90
  5. Step 5: Solve for x
    x = 74,218,398.90/12,670.23
  6. Step 6: Final answer
    x = 5,857.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.