Home / 14,506.60-21,759.90-7,115.80

Finding the Fourth Proportional to 14,506.60, 21,759.90 and 7,115.80

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Solution

The fourth proportional to 14,506.60, 21,759.90 and 7,115.80 is: 10,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,506.60 : 21,759.90 = 7,115.80 : x
  2. Step 2: Convert to fraction form
    14,506.60/21,759.90 = 7,115.80/x
  3. Step 3: Cross multiply
    14,506.60x = 21,759.90 × 7,115.80
  4. Step 4: Simplify right side
    14,506.60x = 154,839,096.42
  5. Step 5: Solve for x
    x = 154,839,096.42/14,506.60
  6. Step 6: Final answer
    x = 10,673.70

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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.