Home / 15,877.55-21,910.64-8,804.03

Finding the Fourth Proportional to 15,877.55, 21,910.64 and 8,804.03

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Solution

The fourth proportional to 15,877.55, 21,910.64 and 8,804.03 is: 12,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.55 : 21,910.64 = 8,804.03 : x
  2. Step 2: Convert to fraction form
    15,877.55/21,910.64 = 8,804.03/x
  3. Step 3: Cross multiply
    15,877.55x = 21,910.64 × 8,804.03
  4. Step 4: Simplify right side
    15,877.55x = 192,901,887.86
  5. Step 5: Solve for x
    x = 192,901,887.86/15,877.55
  6. Step 6: Final answer
    x = 12,149.35

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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.