Home / 12,637.04-18,950.20-3,870

Finding the Fourth Proportional to 12,637.04, 18,950.20 and 3,870

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Solution

The fourth proportional to 12,637.04, 18,950.20 and 3,870 is: 5,803.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.04 : 18,950.20 = 3,870 : x
  2. Step 2: Convert to fraction form
    12,637.04/18,950.20 = 3,870/x
  3. Step 3: Cross multiply
    12,637.04x = 18,950.20 × 3,870
  4. Step 4: Simplify right side
    12,637.04x = 73,337,274
  5. Step 5: Solve for x
    x = 73,337,274/12,637.04
  6. Step 6: Final answer
    x = 5,803.36

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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.