Home / 10,985.72-16,471.87-4,314.22

Finding the Fourth Proportional to 10,985.72, 16,471.87 and 4,314.22

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Solution

The fourth proportional to 10,985.72, 16,471.87 and 4,314.22 is: 6,468.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.72 : 16,471.87 = 4,314.22 : x
  2. Step 2: Convert to fraction form
    10,985.72/16,471.87 = 4,314.22/x
  3. Step 3: Cross multiply
    10,985.72x = 16,471.87 × 4,314.22
  4. Step 4: Simplify right side
    10,985.72x = 71,063,219.03
  5. Step 5: Solve for x
    x = 71,063,219.03/10,985.72
  6. Step 6: Final answer
    x = 6,468.69

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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.