Home / 12,580.46-18,872.96-5,180.88

Finding the Fourth Proportional to 12,580.46, 18,872.96 and 5,180.88

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Solution

The fourth proportional to 12,580.46, 18,872.96 and 5,180.88 is: 7,772.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.46 : 18,872.96 = 5,180.88 : x
  2. Step 2: Convert to fraction form
    12,580.46/18,872.96 = 5,180.88/x
  3. Step 3: Cross multiply
    12,580.46x = 18,872.96 × 5,180.88
  4. Step 4: Simplify right side
    12,580.46x = 97,778,541.00
  5. Step 5: Solve for x
    x = 97,778,541.00/12,580.46
  6. Step 6: Final answer
    x = 7,772.25

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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.