Home / 11,001.90-16,502.57-3,210.78

Finding the Fourth Proportional to 11,001.90, 16,502.57 and 3,210.78

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Solution

The fourth proportional to 11,001.90, 16,502.57 and 3,210.78 is: 4,816.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,001.90 : 16,502.57 = 3,210.78 : x
  2. Step 2: Convert to fraction form
    11,001.90/16,502.57 = 3,210.78/x
  3. Step 3: Cross multiply
    11,001.90x = 16,502.57 × 3,210.78
  4. Step 4: Simplify right side
    11,001.90x = 52,986,039.19
  5. Step 5: Solve for x
    x = 52,986,039.19/11,001.90
  6. Step 6: Final answer
    x = 4,816.08

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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.