Home / 10,379.72-15,577.80-4,540.52

Finding the Fourth Proportional to 10,379.72, 15,577.80 and 4,540.52

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Solution

The fourth proportional to 10,379.72, 15,577.80 and 4,540.52 is: 6,814.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.72 : 15,577.80 = 4,540.52 : x
  2. Step 2: Convert to fraction form
    10,379.72/15,577.80 = 4,540.52/x
  3. Step 3: Cross multiply
    10,379.72x = 15,577.80 × 4,540.52
  4. Step 4: Simplify right side
    10,379.72x = 70,731,312.46
  5. Step 5: Solve for x
    x = 70,731,312.46/10,379.72
  6. Step 6: Final answer
    x = 6,814.38

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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.