Home / 10,912.86-16,368.36-4,337.28

Finding the Fourth Proportional to 10,912.86, 16,368.36 and 4,337.28

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Solution

The fourth proportional to 10,912.86, 16,368.36 and 4,337.28 is: 6,505.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.86 : 16,368.36 = 4,337.28 : x
  2. Step 2: Convert to fraction form
    10,912.86/16,368.36 = 4,337.28/x
  3. Step 3: Cross multiply
    10,912.86x = 16,368.36 × 4,337.28
  4. Step 4: Simplify right side
    10,912.86x = 70,994,160.46
  5. Step 5: Solve for x
    x = 70,994,160.46/10,912.86
  6. Step 6: Final answer
    x = 6,505.55

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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.