Home / 14,130.67-21,195.96-4,270.75

Finding the Fourth Proportional to 14,130.67, 21,195.96 and 4,270.75

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Solution

The fourth proportional to 14,130.67, 21,195.96 and 4,270.75 is: 6,406.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.67 : 21,195.96 = 4,270.75 : x
  2. Step 2: Convert to fraction form
    14,130.67/21,195.96 = 4,270.75/x
  3. Step 3: Cross multiply
    14,130.67x = 21,195.96 × 4,270.75
  4. Step 4: Simplify right side
    14,130.67x = 90,522,646.17
  5. Step 5: Solve for x
    x = 90,522,646.17/14,130.67
  6. Step 6: Final answer
    x = 6,406.11

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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.