Home / 10,887.64-16,331.42-8,700.64

Finding the Fourth Proportional to 10,887.64, 16,331.42 and 8,700.64

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Solution

The fourth proportional to 10,887.64, 16,331.42 and 8,700.64 is: 13,050.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.64 : 16,331.42 = 8,700.64 : x
  2. Step 2: Convert to fraction form
    10,887.64/16,331.42 = 8,700.64/x
  3. Step 3: Cross multiply
    10,887.64x = 16,331.42 × 8,700.64
  4. Step 4: Simplify right side
    10,887.64x = 142,093,806.11
  5. Step 5: Solve for x
    x = 142,093,806.11/10,887.64
  6. Step 6: Final answer
    x = 13,050.93

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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.