Home / 11,319.30-16,985.57-4,744.98

Finding the Fourth Proportional to 11,319.30, 16,985.57 and 4,744.98

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Solution

The fourth proportional to 11,319.30, 16,985.57 and 4,744.98 is: 7,120.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.30 : 16,985.57 = 4,744.98 : x
  2. Step 2: Convert to fraction form
    11,319.30/16,985.57 = 4,744.98/x
  3. Step 3: Cross multiply
    11,319.30x = 16,985.57 × 4,744.98
  4. Step 4: Simplify right side
    11,319.30x = 80,596,166.21
  5. Step 5: Solve for x
    x = 80,596,166.21/11,319.30
  6. Step 6: Final answer
    x = 7,120.24

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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.