Home / 13,995.72-21,013.02-8,150.76

Finding the Fourth Proportional to 13,995.72, 21,013.02 and 8,150.76

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Solution

The fourth proportional to 13,995.72, 21,013.02 and 8,150.76 is: 12,237.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.72 : 21,013.02 = 8,150.76 : x
  2. Step 2: Convert to fraction form
    13,995.72/21,013.02 = 8,150.76/x
  3. Step 3: Cross multiply
    13,995.72x = 21,013.02 × 8,150.76
  4. Step 4: Simplify right side
    13,995.72x = 171,272,082.90
  5. Step 5: Solve for x
    x = 171,272,082.90/13,995.72
  6. Step 6: Final answer
    x = 12,237.46

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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.