Home / 13,688.59-20,481.62-9,748.95

Finding the Fourth Proportional to 13,688.59, 20,481.62 and 9,748.95

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Solution

The fourth proportional to 13,688.59, 20,481.62 and 9,748.95 is: 14,586.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.59 : 20,481.62 = 9,748.95 : x
  2. Step 2: Convert to fraction form
    13,688.59/20,481.62 = 9,748.95/x
  3. Step 3: Cross multiply
    13,688.59x = 20,481.62 × 9,748.95
  4. Step 4: Simplify right side
    13,688.59x = 199,674,289.30
  5. Step 5: Solve for x
    x = 199,674,289.30/13,688.59
  6. Step 6: Final answer
    x = 14,586.91

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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.