Home / 10,887.94-16,331.91-8,710.51

Finding the Fourth Proportional to 10,887.94, 16,331.91 and 8,710.51

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Solution

The fourth proportional to 10,887.94, 16,331.91 and 8,710.51 is: 13,065.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.94 : 16,331.91 = 8,710.51 : x
  2. Step 2: Convert to fraction form
    10,887.94/16,331.91 = 8,710.51/x
  3. Step 3: Cross multiply
    10,887.94x = 16,331.91 × 8,710.51
  4. Step 4: Simplify right side
    10,887.94x = 142,259,265.37
  5. Step 5: Solve for x
    x = 142,259,265.37/10,887.94
  6. Step 6: Final answer
    x = 13,065.77

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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.