Home / 10,717.60-16,076.40-2,927.20

Finding the Fourth Proportional to 10,717.60, 16,076.40 and 2,927.20

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Solution

The fourth proportional to 10,717.60, 16,076.40 and 2,927.20 is: 4,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,717.60 : 16,076.40 = 2,927.20 : x
  2. Step 2: Convert to fraction form
    10,717.60/16,076.40 = 2,927.20/x
  3. Step 3: Cross multiply
    10,717.60x = 16,076.40 × 2,927.20
  4. Step 4: Simplify right side
    10,717.60x = 47,058,838.08
  5. Step 5: Solve for x
    x = 47,058,838.08/10,717.60
  6. Step 6: Final answer
    x = 4,390.80

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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.