Home / 10,877.66-15,018.39-8,355.26

Finding the Fourth Proportional to 10,877.66, 15,018.39 and 8,355.26

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Solution

The fourth proportional to 10,877.66, 15,018.39 and 8,355.26 is: 11,535.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.66 : 15,018.39 = 8,355.26 : x
  2. Step 2: Convert to fraction form
    10,877.66/15,018.39 = 8,355.26/x
  3. Step 3: Cross multiply
    10,877.66x = 15,018.39 × 8,355.26
  4. Step 4: Simplify right side
    10,877.66x = 125,482,553.23
  5. Step 5: Solve for x
    x = 125,482,553.23/10,877.66
  6. Step 6: Final answer
    x = 11,535.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.