Home / 12,988.18-19,483.29-4,104.19

Finding the Fourth Proportional to 12,988.18, 19,483.29 and 4,104.19

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Solution

The fourth proportional to 12,988.18, 19,483.29 and 4,104.19 is: 6,156.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,988.18 : 19,483.29 = 4,104.19 : x
  2. Step 2: Convert to fraction form
    12,988.18/19,483.29 = 4,104.19/x
  3. Step 3: Cross multiply
    12,988.18x = 19,483.29 × 4,104.19
  4. Step 4: Simplify right side
    12,988.18x = 79,963,103.46
  5. Step 5: Solve for x
    x = 79,963,103.46/12,988.18
  6. Step 6: Final answer
    x = 6,156.61

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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.