Home / 14,117.20-21,168.96-4,254.64

Finding the Fourth Proportional to 14,117.20, 21,168.96 and 4,254.64

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Solution

The fourth proportional to 14,117.20, 21,168.96 and 4,254.64 is: 6,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.20 : 21,168.96 = 4,254.64 : x
  2. Step 2: Convert to fraction form
    14,117.20/21,168.96 = 4,254.64/x
  3. Step 3: Cross multiply
    14,117.20x = 21,168.96 × 4,254.64
  4. Step 4: Simplify right side
    14,117.20x = 90,066,303.97
  5. Step 5: Solve for x
    x = 90,066,303.97/14,117.20
  6. Step 6: Final answer
    x = 6,379.90

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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.