Home / 14,487.24-19,990.70-8,114.20

Finding the Fourth Proportional to 14,487.24, 19,990.70 and 8,114.20

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Solution

The fourth proportional to 14,487.24, 19,990.70 and 8,114.20 is: 11,196.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.24 : 19,990.70 = 8,114.20 : x
  2. Step 2: Convert to fraction form
    14,487.24/19,990.70 = 8,114.20/x
  3. Step 3: Cross multiply
    14,487.24x = 19,990.70 × 8,114.20
  4. Step 4: Simplify right side
    14,487.24x = 162,208,537.94
  5. Step 5: Solve for x
    x = 162,208,537.94/14,487.24
  6. Step 6: Final answer
    x = 11,196.65

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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.