Home / 13,319.18-19,977.98-4,998.49

Finding the Fourth Proportional to 13,319.18, 19,977.98 and 4,998.49

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Solution

The fourth proportional to 13,319.18, 19,977.98 and 4,998.49 is: 7,497.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.18 : 19,977.98 = 4,998.49 : x
  2. Step 2: Convert to fraction form
    13,319.18/19,977.98 = 4,998.49/x
  3. Step 3: Cross multiply
    13,319.18x = 19,977.98 × 4,998.49
  4. Step 4: Simplify right side
    13,319.18x = 99,859,658.31
  5. Step 5: Solve for x
    x = 99,859,658.31/13,319.18
  6. Step 6: Final answer
    x = 7,497.44

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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.