Home / 14,035.15-20,990.76-12,486.07

Finding the Fourth Proportional to 14,035.15, 20,990.76 and 12,486.07

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Solution

The fourth proportional to 14,035.15, 20,990.76 and 12,486.07 is: 18,673.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,035.15 : 20,990.76 = 12,486.07 : x
  2. Step 2: Convert to fraction form
    14,035.15/20,990.76 = 12,486.07/x
  3. Step 3: Cross multiply
    14,035.15x = 20,990.76 × 12,486.07
  4. Step 4: Simplify right side
    14,035.15x = 262,092,098.71
  5. Step 5: Solve for x
    x = 262,092,098.71/14,035.15
  6. Step 6: Final answer
    x = 18,673.98

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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.