Home / 11,875.65-17,814.98-4,379.70

Finding the Fourth Proportional to 11,875.65, 17,814.98 and 4,379.70

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Solution

The fourth proportional to 11,875.65, 17,814.98 and 4,379.70 is: 6,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.65 : 17,814.98 = 4,379.70 : x
  2. Step 2: Convert to fraction form
    11,875.65/17,814.98 = 4,379.70/x
  3. Step 3: Cross multiply
    11,875.65x = 17,814.98 × 4,379.70
  4. Step 4: Simplify right side
    11,875.65x = 78,024,267.91
  5. Step 5: Solve for x
    x = 78,024,267.91/11,875.65
  6. Step 6: Final answer
    x = 6,570.11

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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.