Home / 10,685.20-16,024.92-7,243.60

Finding the Fourth Proportional to 10,685.20, 16,024.92 and 7,243.60

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Solution

The fourth proportional to 10,685.20, 16,024.92 and 7,243.60 is: 10,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,685.20 : 16,024.92 = 7,243.60 : x
  2. Step 2: Convert to fraction form
    10,685.20/16,024.92 = 7,243.60/x
  3. Step 3: Cross multiply
    10,685.20x = 16,024.92 × 7,243.60
  4. Step 4: Simplify right side
    10,685.20x = 116,078,110.51
  5. Step 5: Solve for x
    x = 116,078,110.51/10,685.20
  6. Step 6: Final answer
    x = 10,863.45

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1.5x scale

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.