Home / 19,862.13-27,411.21-12,309.95

Finding the Fourth Proportional to 19,862.13, 27,411.21 and 12,309.95

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Solution

The fourth proportional to 19,862.13, 27,411.21 and 12,309.95 is: 16,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.13 : 27,411.21 = 12,309.95 : x
  2. Step 2: Convert to fraction form
    19,862.13/27,411.21 = 12,309.95/x
  3. Step 3: Cross multiply
    19,862.13x = 27,411.21 × 12,309.95
  4. Step 4: Simplify right side
    19,862.13x = 337,430,487.48
  5. Step 5: Solve for x
    x = 337,430,487.48/19,862.13
  6. Step 6: Final answer
    x = 16,988.64

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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.