Home / 18,156.96-25,077.60-11,897.28

Finding the Fourth Proportional to 18,156.96, 25,077.60 and 11,897.28

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Solution

The fourth proportional to 18,156.96, 25,077.60 and 11,897.28 is: 16,432.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156.96 : 25,077.60 = 11,897.28 : x
  2. Step 2: Convert to fraction form
    18,156.96/25,077.60 = 11,897.28/x
  3. Step 3: Cross multiply
    18,156.96x = 25,077.60 × 11,897.28
  4. Step 4: Simplify right side
    18,156.96x = 298,355,228.93
  5. Step 5: Solve for x
    x = 298,355,228.93/18,156.96
  6. Step 6: Final answer
    x = 16,432.00

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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.