Home / 10,905.86-16,362.30-5,358.08

Finding the Fourth Proportional to 10,905.86, 16,362.30 and 5,358.08

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Solution

The fourth proportional to 10,905.86, 16,362.30 and 5,358.08 is: 8,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.86 : 16,362.30 = 5,358.08 : x
  2. Step 2: Convert to fraction form
    10,905.86/16,362.30 = 5,358.08/x
  3. Step 3: Cross multiply
    10,905.86x = 16,362.30 × 5,358.08
  4. Step 4: Simplify right side
    10,905.86x = 87,670,512.38
  5. Step 5: Solve for x
    x = 87,670,512.38/10,905.86
  6. Step 6: Final answer
    x = 8,038.84

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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.