Home / 10,887.10-16,335.61-6,453.51

Finding the Fourth Proportional to 10,887.10, 16,335.61 and 6,453.51

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Solution

The fourth proportional to 10,887.10, 16,335.61 and 6,453.51 is: 9,683.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.10 : 16,335.61 = 6,453.51 : x
  2. Step 2: Convert to fraction form
    10,887.10/16,335.61 = 6,453.51/x
  3. Step 3: Cross multiply
    10,887.10x = 16,335.61 × 6,453.51
  4. Step 4: Simplify right side
    10,887.10x = 105,422,022.49
  5. Step 5: Solve for x
    x = 105,422,022.49/10,887.10
  6. Step 6: Final answer
    x = 9,683.21

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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.