Home / 14,114.10-19,479.18-8,145.78

Finding the Fourth Proportional to 14,114.10, 19,479.18 and 8,145.78

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Solution

The fourth proportional to 14,114.10, 19,479.18 and 8,145.78 is: 11,242.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,114.10 : 19,479.18 = 8,145.78 : x
  2. Step 2: Convert to fraction form
    14,114.10/19,479.18 = 8,145.78/x
  3. Step 3: Cross multiply
    14,114.10x = 19,479.18 × 8,145.78
  4. Step 4: Simplify right side
    14,114.10x = 158,673,114.86
  5. Step 5: Solve for x
    x = 158,673,114.86/14,114.10
  6. Step 6: Final answer
    x = 11,242.17

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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.