Home / 14,421.60-21,631.68-9,216

Finding the Fourth Proportional to 14,421.60, 21,631.68 and 9,216

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Solution

The fourth proportional to 14,421.60, 21,631.68 and 9,216 is: 13,823.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.60 : 21,631.68 = 9,216 : x
  2. Step 2: Convert to fraction form
    14,421.60/21,631.68 = 9,216/x
  3. Step 3: Cross multiply
    14,421.60x = 21,631.68 × 9,216
  4. Step 4: Simplify right side
    14,421.60x = 199,357,562.88
  5. Step 5: Solve for x
    x = 199,357,562.88/14,421.60
  6. Step 6: Final answer
    x = 13,823.54

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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.