Home / 13,312.98-19,979.79-5,000.55

Finding the Fourth Proportional to 13,312.98, 19,979.79 and 5,000.55

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Solution

The fourth proportional to 13,312.98, 19,979.79 and 5,000.55 is: 7,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.98 : 19,979.79 = 5,000.55 : x
  2. Step 2: Convert to fraction form
    13,312.98/19,979.79 = 5,000.55/x
  3. Step 3: Cross multiply
    13,312.98x = 19,979.79 × 5,000.55
  4. Step 4: Simplify right side
    13,312.98x = 99,909,938.88
  5. Step 5: Solve for x
    x = 99,909,938.88/13,312.98
  6. Step 6: Final answer
    x = 7,504.70

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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.