Home / 13,317.48-19,985.40-8,625.87

Finding the Fourth Proportional to 13,317.48, 19,985.40 and 8,625.87

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Solution

The fourth proportional to 13,317.48, 19,985.40 and 8,625.87 is: 12,944.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.48 : 19,985.40 = 8,625.87 : x
  2. Step 2: Convert to fraction form
    13,317.48/19,985.40 = 8,625.87/x
  3. Step 3: Cross multiply
    13,317.48x = 19,985.40 × 8,625.87
  4. Step 4: Simplify right side
    13,317.48x = 172,391,462.30
  5. Step 5: Solve for x
    x = 172,391,462.30/13,317.48
  6. Step 6: Final answer
    x = 12,944.75

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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.