Home / 14,921.10-20,592.18-9,876.54

Finding the Fourth Proportional to 14,921.10, 20,592.18 and 9,876.54

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Solution

The fourth proportional to 14,921.10, 20,592.18 and 9,876.54 is: 13,630.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,921.10 : 20,592.18 = 9,876.54 : x
  2. Step 2: Convert to fraction form
    14,921.10/20,592.18 = 9,876.54/x
  3. Step 3: Cross multiply
    14,921.10x = 20,592.18 × 9,876.54
  4. Step 4: Simplify right side
    14,921.10x = 203,379,489.46
  5. Step 5: Solve for x
    x = 203,379,489.46/14,921.10
  6. Step 6: Final answer
    x = 13,630.33

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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.