Home / 13,548.62-20,320.86-3,688.67

Finding the Fourth Proportional to 13,548.62, 20,320.86 and 3,688.67

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Solution

The fourth proportional to 13,548.62, 20,320.86 and 3,688.67 is: 5,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.62 : 20,320.86 = 3,688.67 : x
  2. Step 2: Convert to fraction form
    13,548.62/20,320.86 = 3,688.67/x
  3. Step 3: Cross multiply
    13,548.62x = 20,320.86 × 3,688.67
  4. Step 4: Simplify right side
    13,548.62x = 74,957,011.29
  5. Step 5: Solve for x
    x = 74,957,011.29/13,548.62
  6. Step 6: Final answer
    x = 5,532.45

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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.