Home / 14,651.48-20,220.36-8,365.88

Finding the Fourth Proportional to 14,651.48, 20,220.36 and 8,365.88

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Solution

The fourth proportional to 14,651.48, 20,220.36 and 8,365.88 is: 11,545.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.48 : 20,220.36 = 8,365.88 : x
  2. Step 2: Convert to fraction form
    14,651.48/20,220.36 = 8,365.88/x
  3. Step 3: Cross multiply
    14,651.48x = 20,220.36 × 8,365.88
  4. Step 4: Simplify right side
    14,651.48x = 169,161,105.32
  5. Step 5: Solve for x
    x = 169,161,105.32/14,651.48
  6. Step 6: Final answer
    x = 11,545.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.