Home / 11,890.02-17,828.66-11,378.81

Finding the Fourth Proportional to 11,890.02, 17,828.66 and 11,378.81

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Solution

The fourth proportional to 11,890.02, 17,828.66 and 11,378.81 is: 17,062.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.02 : 17,828.66 = 11,378.81 : x
  2. Step 2: Convert to fraction form
    11,890.02/17,828.66 = 11,378.81/x
  3. Step 3: Cross multiply
    11,890.02x = 17,828.66 × 11,378.81
  4. Step 4: Simplify right side
    11,890.02x = 202,868,943.71
  5. Step 5: Solve for x
    x = 202,868,943.71/11,890.02
  6. Step 6: Final answer
    x = 17,062.11

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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.