Home / 15,174.04-20,939.70-8,887.40

Finding the Fourth Proportional to 15,174.04, 20,939.70 and 8,887.40

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Solution

The fourth proportional to 15,174.04, 20,939.70 and 8,887.40 is: 12,264.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.04 : 20,939.70 = 8,887.40 : x
  2. Step 2: Convert to fraction form
    15,174.04/20,939.70 = 8,887.40/x
  3. Step 3: Cross multiply
    15,174.04x = 20,939.70 × 8,887.40
  4. Step 4: Simplify right side
    15,174.04x = 186,099,489.78
  5. Step 5: Solve for x
    x = 186,099,489.78/15,174.04
  6. Step 6: Final answer
    x = 12,264.33

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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.