Home / 14,002.90-19,317.68-9,221.56

Finding the Fourth Proportional to 14,002.90, 19,317.68 and 9,221.56

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Solution

The fourth proportional to 14,002.90, 19,317.68 and 9,221.56 is: 12,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,002.90 : 19,317.68 = 9,221.56 : x
  2. Step 2: Convert to fraction form
    14,002.90/19,317.68 = 9,221.56/x
  3. Step 3: Cross multiply
    14,002.90x = 19,317.68 × 9,221.56
  4. Step 4: Simplify right side
    14,002.90x = 178,139,145.18
  5. Step 5: Solve for x
    x = 178,139,145.18/14,002.90
  6. Step 6: Final answer
    x = 12,721.59

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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.