Home / 14,421.76-21,667.20-9,237.76

Finding the Fourth Proportional to 14,421.76, 21,667.20 and 9,237.76

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Solution

The fourth proportional to 14,421.76, 21,667.20 and 9,237.76 is: 13,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.76 : 21,667.20 = 9,237.76 : x
  2. Step 2: Convert to fraction form
    14,421.76/21,667.20 = 9,237.76/x
  3. Step 3: Cross multiply
    14,421.76x = 21,667.20 × 9,237.76
  4. Step 4: Simplify right side
    14,421.76x = 200,156,393.47
  5. Step 5: Solve for x
    x = 200,156,393.47/14,421.76
  6. Step 6: Final answer
    x = 13,878.78

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1.5x scale

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.