Home / 14,115.70-21,177.08-9,963.81

Finding the Fourth Proportional to 14,115.70, 21,177.08 and 9,963.81

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Solution

The fourth proportional to 14,115.70, 21,177.08 and 9,963.81 is: 14,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.70 : 21,177.08 = 9,963.81 : x
  2. Step 2: Convert to fraction form
    14,115.70/21,177.08 = 9,963.81/x
  3. Step 3: Cross multiply
    14,115.70x = 21,177.08 × 9,963.81
  4. Step 4: Simplify right side
    14,115.70x = 211,004,389.02
  5. Step 5: Solve for x
    x = 211,004,389.02/14,115.70
  6. Step 6: Final answer
    x = 14,948.20

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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.