Home / 14,420.28-19,900.06-8,047.46

Finding the Fourth Proportional to 14,420.28, 19,900.06 and 8,047.46

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Solution

The fourth proportional to 14,420.28, 19,900.06 and 8,047.46 is: 11,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.28 : 19,900.06 = 8,047.46 : x
  2. Step 2: Convert to fraction form
    14,420.28/19,900.06 = 8,047.46/x
  3. Step 3: Cross multiply
    14,420.28x = 19,900.06 × 8,047.46
  4. Step 4: Simplify right side
    14,420.28x = 160,144,936.85
  5. Step 5: Solve for x
    x = 160,144,936.85/14,420.28
  6. Step 6: Final answer
    x = 11,105.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.