Home / 14,035.65-20,991.51-12,486.57

Finding the Fourth Proportional to 14,035.65, 20,991.51 and 12,486.57

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Solution

The fourth proportional to 14,035.65, 20,991.51 and 12,486.57 is: 18,674.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,035.65 : 20,991.51 = 12,486.57 : x
  2. Step 2: Convert to fraction form
    14,035.65/20,991.51 = 12,486.57/x
  3. Step 3: Cross multiply
    14,035.65x = 20,991.51 × 12,486.57
  4. Step 4: Simplify right side
    14,035.65x = 262,111,959.02
  5. Step 5: Solve for x
    x = 262,111,959.02/14,035.65
  6. Step 6: Final answer
    x = 18,674.73

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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.