Home / 10,685.20-14,746.44-6,491.92

Finding the Fourth Proportional to 10,685.20, 14,746.44 and 6,491.92

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Solution

The fourth proportional to 10,685.20, 14,746.44 and 6,491.92 is: 8,959.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,685.20 : 14,746.44 = 6,491.92 : x
  2. Step 2: Convert to fraction form
    10,685.20/14,746.44 = 6,491.92/x
  3. Step 3: Cross multiply
    10,685.20x = 14,746.44 × 6,491.92
  4. Step 4: Simplify right side
    10,685.20x = 95,732,708.76
  5. Step 5: Solve for x
    x = 95,732,708.76/10,685.20
  6. Step 6: Final answer
    x = 8,959.37

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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.