Home / 10,142.63-15,211.49-2,746.61

Finding the Fourth Proportional to 10,142.63, 15,211.49 and 2,746.61

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Solution

The fourth proportional to 10,142.63, 15,211.49 and 2,746.61 is: 4,119.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142.63 : 15,211.49 = 2,746.61 : x
  2. Step 2: Convert to fraction form
    10,142.63/15,211.49 = 2,746.61/x
  3. Step 3: Cross multiply
    10,142.63x = 15,211.49 × 2,746.61
  4. Step 4: Simplify right side
    10,142.63x = 41,779,940.76
  5. Step 5: Solve for x
    x = 41,779,940.76/10,142.63
  6. Step 6: Final answer
    x = 4,119.24

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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.