Home / 13,159.20-19,741.91-4,274.51

Finding the Fourth Proportional to 13,159.20, 19,741.91 and 4,274.51

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Solution

The fourth proportional to 13,159.20, 19,741.91 and 4,274.51 is: 6,412.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.20 : 19,741.91 = 4,274.51 : x
  2. Step 2: Convert to fraction form
    13,159.20/19,741.91 = 4,274.51/x
  3. Step 3: Cross multiply
    13,159.20x = 19,741.91 × 4,274.51
  4. Step 4: Simplify right side
    13,159.20x = 84,386,871.63
  5. Step 5: Solve for x
    x = 84,386,871.63/13,159.20
  6. Step 6: Final answer
    x = 6,412.76

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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.