Home / 14,001.77-21,000.22-5,234.87

Finding the Fourth Proportional to 14,001.77, 21,000.22 and 5,234.87

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Solution

The fourth proportional to 14,001.77, 21,000.22 and 5,234.87 is: 7,851.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.77 : 21,000.22 = 5,234.87 : x
  2. Step 2: Convert to fraction form
    14,001.77/21,000.22 = 5,234.87/x
  3. Step 3: Cross multiply
    14,001.77x = 21,000.22 × 5,234.87
  4. Step 4: Simplify right side
    14,001.77x = 109,933,421.67
  5. Step 5: Solve for x
    x = 109,933,421.67/14,001.77
  6. Step 6: Final answer
    x = 7,851.39

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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.