Home / 14,640.30-21,960.72-5,281.02

Finding the Fourth Proportional to 14,640.30, 21,960.72 and 5,281.02

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Solution

The fourth proportional to 14,640.30, 21,960.72 and 5,281.02 is: 7,921.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.30 : 21,960.72 = 5,281.02 : x
  2. Step 2: Convert to fraction form
    14,640.30/21,960.72 = 5,281.02/x
  3. Step 3: Cross multiply
    14,640.30x = 21,960.72 × 5,281.02
  4. Step 4: Simplify right side
    14,640.30x = 115,975,001.53
  5. Step 5: Solve for x
    x = 115,975,001.53/14,640.30
  6. Step 6: Final answer
    x = 7,921.63

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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.