Home / 9,945.60-14,930.55-9,872.70

Finding the Fourth Proportional to 9,945.60, 14,930.55 and 9,872.70

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Solution

The fourth proportional to 9,945.60, 14,930.55 and 9,872.70 is: 14,821.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,945.60 : 14,930.55 = 9,872.70 : x
  2. Step 2: Convert to fraction form
    9,945.60/14,930.55 = 9,872.70/x
  3. Step 3: Cross multiply
    9,945.60x = 14,930.55 × 9,872.70
  4. Step 4: Simplify right side
    9,945.60x = 147,404,840.99
  5. Step 5: Solve for x
    x = 147,404,840.99/9,945.60
  6. Step 6: Final answer
    x = 14,821.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.