Home / 13,265.74-19,899.86-3,905.76

Finding the Fourth Proportional to 13,265.74, 19,899.86 and 3,905.76

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Solution

The fourth proportional to 13,265.74, 19,899.86 and 3,905.76 is: 5,859.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.74 : 19,899.86 = 3,905.76 : x
  2. Step 2: Convert to fraction form
    13,265.74/19,899.86 = 3,905.76/x
  3. Step 3: Cross multiply
    13,265.74x = 19,899.86 × 3,905.76
  4. Step 4: Simplify right side
    13,265.74x = 77,724,077.19
  5. Step 5: Solve for x
    x = 77,724,077.19/13,265.74
  6. Step 6: Final answer
    x = 5,859.01

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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.