Home / 14,501.50-20,012.69-8,451.61

Finding the Fourth Proportional to 14,501.50, 20,012.69 and 8,451.61

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Solution

The fourth proportional to 14,501.50, 20,012.69 and 8,451.61 is: 11,663.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,501.50 : 20,012.69 = 8,451.61 : x
  2. Step 2: Convert to fraction form
    14,501.50/20,012.69 = 8,451.61/x
  3. Step 3: Cross multiply
    14,501.50x = 20,012.69 × 8,451.61
  4. Step 4: Simplify right side
    14,501.50x = 169,139,450.93
  5. Step 5: Solve for x
    x = 169,139,450.93/14,501.50
  6. Step 6: Final answer
    x = 11,663.58

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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.