Home / 14,678.21-20,256.01-7,963.85

Finding the Fourth Proportional to 14,678.21, 20,256.01 and 7,963.85

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Solution

The fourth proportional to 14,678.21, 20,256.01 and 7,963.85 is: 10,990.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,678.21 : 20,256.01 = 7,963.85 : x
  2. Step 2: Convert to fraction form
    14,678.21/20,256.01 = 7,963.85/x
  3. Step 3: Cross multiply
    14,678.21x = 20,256.01 × 7,963.85
  4. Step 4: Simplify right side
    14,678.21x = 161,315,684.14
  5. Step 5: Solve for x
    x = 161,315,684.14/14,678.21
  6. Step 6: Final answer
    x = 10,990.15

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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.