Home / 13,856.91-20,782.77-4,497.01

Finding the Fourth Proportional to 13,856.91, 20,782.77 and 4,497.01

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Solution

The fourth proportional to 13,856.91, 20,782.77 and 4,497.01 is: 6,744.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.91 : 20,782.77 = 4,497.01 : x
  2. Step 2: Convert to fraction form
    13,856.91/20,782.77 = 4,497.01/x
  3. Step 3: Cross multiply
    13,856.91x = 20,782.77 × 4,497.01
  4. Step 4: Simplify right side
    13,856.91x = 93,460,277.25
  5. Step 5: Solve for x
    x = 93,460,277.25/13,856.91
  6. Step 6: Final answer
    x = 6,744.67

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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.