Home / 10,929.13-16,393.70-4,355.38

Finding the Fourth Proportional to 10,929.13, 16,393.70 and 4,355.38

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Solution

The fourth proportional to 10,929.13, 16,393.70 and 4,355.38 is: 6,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.13 : 16,393.70 = 4,355.38 : x
  2. Step 2: Convert to fraction form
    10,929.13/16,393.70 = 4,355.38/x
  3. Step 3: Cross multiply
    10,929.13x = 16,393.70 × 4,355.38
  4. Step 4: Simplify right side
    10,929.13x = 71,400,793.11
  5. Step 5: Solve for x
    x = 71,400,793.11/10,929.13
  6. Step 6: Final answer
    x = 6,533.07

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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.