Home / 14,580.42-20,120.94-8,292.78

Finding the Fourth Proportional to 14,580.42, 20,120.94 and 8,292.78

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Solution

The fourth proportional to 14,580.42, 20,120.94 and 8,292.78 is: 11,444.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,580.42 : 20,120.94 = 8,292.78 : x
  2. Step 2: Convert to fraction form
    14,580.42/20,120.94 = 8,292.78/x
  3. Step 3: Cross multiply
    14,580.42x = 20,120.94 × 8,292.78
  4. Step 4: Simplify right side
    14,580.42x = 166,858,528.81
  5. Step 5: Solve for x
    x = 166,858,528.81/14,580.42
  6. Step 6: Final answer
    x = 11,444.01

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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.