Home / 14,020.08-21,008.12-8,815.02

Finding the Fourth Proportional to 14,020.08, 21,008.12 and 8,815.02

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Solution

The fourth proportional to 14,020.08, 21,008.12 and 8,815.02 is: 13,208.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.08 : 21,008.12 = 8,815.02 : x
  2. Step 2: Convert to fraction form
    14,020.08/21,008.12 = 8,815.02/x
  3. Step 3: Cross multiply
    14,020.08x = 21,008.12 × 8,815.02
  4. Step 4: Simplify right side
    14,020.08x = 185,186,953.89
  5. Step 5: Solve for x
    x = 185,186,953.89/14,020.08
  6. Step 6: Final answer
    x = 13,208.69

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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.