Home / 11,135.40-16,703.32-5,210.70

Finding the Fourth Proportional to 11,135.40, 16,703.32 and 5,210.70

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Solution

The fourth proportional to 11,135.40, 16,703.32 and 5,210.70 is: 7,816.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.40 : 16,703.32 = 5,210.70 : x
  2. Step 2: Convert to fraction form
    11,135.40/16,703.32 = 5,210.70/x
  3. Step 3: Cross multiply
    11,135.40x = 16,703.32 × 5,210.70
  4. Step 4: Simplify right side
    11,135.40x = 87,035,989.52
  5. Step 5: Solve for x
    x = 87,035,989.52/11,135.40
  6. Step 6: Final answer
    x = 7,816.15

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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.