Home / 14,354.12-19,808.75-7,981.30

Finding the Fourth Proportional to 14,354.12, 19,808.75 and 7,981.30

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Solution

The fourth proportional to 14,354.12, 19,808.75 and 7,981.30 is: 11,014.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,354.12 : 19,808.75 = 7,981.30 : x
  2. Step 2: Convert to fraction form
    14,354.12/19,808.75 = 7,981.30/x
  3. Step 3: Cross multiply
    14,354.12x = 19,808.75 × 7,981.30
  4. Step 4: Simplify right side
    14,354.12x = 158,099,537.52
  5. Step 5: Solve for x
    x = 158,099,537.52/14,354.12
  6. Step 6: Final answer
    x = 11,014.22

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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.