Home / 13,580.49-20,366.40-5,682.99

Finding the Fourth Proportional to 13,580.49, 20,366.40 and 5,682.99

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Solution

The fourth proportional to 13,580.49, 20,366.40 and 5,682.99 is: 8,522.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.49 : 20,366.40 = 5,682.99 : x
  2. Step 2: Convert to fraction form
    13,580.49/20,366.40 = 5,682.99/x
  3. Step 3: Cross multiply
    13,580.49x = 20,366.40 × 5,682.99
  4. Step 4: Simplify right side
    13,580.49x = 115,742,047.54
  5. Step 5: Solve for x
    x = 115,742,047.54/13,580.49
  6. Step 6: Final answer
    x = 8,522.67

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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.