Home / 13,319.36-19,966.64-4,548.08

Finding the Fourth Proportional to 13,319.36, 19,966.64 and 4,548.08

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Solution

The fourth proportional to 13,319.36, 19,966.64 and 4,548.08 is: 6,817.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.36 : 19,966.64 = 4,548.08 : x
  2. Step 2: Convert to fraction form
    13,319.36/19,966.64 = 4,548.08/x
  3. Step 3: Cross multiply
    13,319.36x = 19,966.64 × 4,548.08
  4. Step 4: Simplify right side
    13,319.36x = 90,809,876.05
  5. Step 5: Solve for x
    x = 90,809,876.05/13,319.36
  6. Step 6: Final answer
    x = 6,817.89

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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.