Home / 11,931.77-17,897.66-4,140.59

Finding the Fourth Proportional to 11,931.77, 17,897.66 and 4,140.59

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Solution

The fourth proportional to 11,931.77, 17,897.66 and 4,140.59 is: 6,210.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.77 : 17,897.66 = 4,140.59 : x
  2. Step 2: Convert to fraction form
    11,931.77/17,897.66 = 4,140.59/x
  3. Step 3: Cross multiply
    11,931.77x = 17,897.66 × 4,140.59
  4. Step 4: Simplify right side
    11,931.77x = 74,106,761.83
  5. Step 5: Solve for x
    x = 74,106,761.83/11,931.77
  6. Step 6: Final answer
    x = 6,210.88

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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.