Home / 14,589.36-20,128.32-8,300.16

Finding the Fourth Proportional to 14,589.36, 20,128.32 and 8,300.16

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Solution

The fourth proportional to 14,589.36, 20,128.32 and 8,300.16 is: 11,451.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,589.36 : 20,128.32 = 8,300.16 : x
  2. Step 2: Convert to fraction form
    14,589.36/20,128.32 = 8,300.16/x
  3. Step 3: Cross multiply
    14,589.36x = 20,128.32 × 8,300.16
  4. Step 4: Simplify right side
    14,589.36x = 167,068,276.53
  5. Step 5: Solve for x
    x = 167,068,276.53/14,589.36
  6. Step 6: Final answer
    x = 11,451.38

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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.