Home / 10,718.40-16,077.60-4,876.68

Finding the Fourth Proportional to 10,718.40, 16,077.60 and 4,876.68

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Solution

The fourth proportional to 10,718.40, 16,077.60 and 4,876.68 is: 7,315.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,718.40 : 16,077.60 = 4,876.68 : x
  2. Step 2: Convert to fraction form
    10,718.40/16,077.60 = 4,876.68/x
  3. Step 3: Cross multiply
    10,718.40x = 16,077.60 × 4,876.68
  4. Step 4: Simplify right side
    10,718.40x = 78,405,310.37
  5. Step 5: Solve for x
    x = 78,405,310.37/10,718.40
  6. Step 6: Final answer
    x = 7,315.02

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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.