Home / 19,864.81-29,777.06-12,474.49

Finding the Fourth Proportional to 19,864.81, 29,777.06 and 12,474.49

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Solution

The fourth proportional to 19,864.81, 29,777.06 and 12,474.49 is: 18,699.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.81 : 29,777.06 = 12,474.49 : x
  2. Step 2: Convert to fraction form
    19,864.81/29,777.06 = 12,474.49/x
  3. Step 3: Cross multiply
    19,864.81x = 29,777.06 × 12,474.49
  4. Step 4: Simplify right side
    19,864.81x = 371,453,574.83
  5. Step 5: Solve for x
    x = 371,453,574.83/19,864.81
  6. Step 6: Final answer
    x = 18,699.08

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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.