Home / 14,171.30-21,243.08-5,280.12

Finding the Fourth Proportional to 14,171.30, 21,243.08 and 5,280.12

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Solution

The fourth proportional to 14,171.30, 21,243.08 and 5,280.12 is: 7,915.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,171.30 : 21,243.08 = 5,280.12 : x
  2. Step 2: Convert to fraction form
    14,171.30/21,243.08 = 5,280.12/x
  3. Step 3: Cross multiply
    14,171.30x = 21,243.08 × 5,280.12
  4. Step 4: Simplify right side
    14,171.30x = 112,166,011.57
  5. Step 5: Solve for x
    x = 112,166,011.57/14,171.30
  6. Step 6: Final answer
    x = 7,915.01

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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.