Home / 10,887.22-16,328.40-4,314.88

Finding the Fourth Proportional to 10,887.22, 16,328.40 and 4,314.88

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Solution

The fourth proportional to 10,887.22, 16,328.40 and 4,314.88 is: 6,471.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.22 : 16,328.40 = 4,314.88 : x
  2. Step 2: Convert to fraction form
    10,887.22/16,328.40 = 4,314.88/x
  3. Step 3: Cross multiply
    10,887.22x = 16,328.40 × 4,314.88
  4. Step 4: Simplify right side
    10,887.22x = 70,455,086.59
  5. Step 5: Solve for x
    x = 70,455,086.59/10,887.22
  6. Step 6: Final answer
    x = 6,471.36

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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.