Home / 13,290.48-19,935.72-11,579.76

Finding the Fourth Proportional to 13,290.48, 19,935.72 and 11,579.76

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Solution

The fourth proportional to 13,290.48, 19,935.72 and 11,579.76 is: 17,369.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.48 : 19,935.72 = 11,579.76 : x
  2. Step 2: Convert to fraction form
    13,290.48/19,935.72 = 11,579.76/x
  3. Step 3: Cross multiply
    13,290.48x = 19,935.72 × 11,579.76
  4. Step 4: Simplify right side
    13,290.48x = 230,850,853.03
  5. Step 5: Solve for x
    x = 230,850,853.03/13,290.48
  6. Step 6: Final answer
    x = 17,369.64

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Similar ratio
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1.5x scale

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.