Home / 14,121.30-21,169.80-9,948.18

Finding the Fourth Proportional to 14,121.30, 21,169.80 and 9,948.18

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Solution

The fourth proportional to 14,121.30, 21,169.80 and 9,948.18 is: 14,913.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.30 : 21,169.80 = 9,948.18 : x
  2. Step 2: Convert to fraction form
    14,121.30/21,169.80 = 9,948.18/x
  3. Step 3: Cross multiply
    14,121.30x = 21,169.80 × 9,948.18
  4. Step 4: Simplify right side
    14,121.30x = 210,600,980.96
  5. Step 5: Solve for x
    x = 210,600,980.96/14,121.30
  6. Step 6: Final answer
    x = 14,913.71

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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.