Home / 12,380.18-18,570.07-4,984.45

Finding the Fourth Proportional to 12,380.18, 18,570.07 and 4,984.45

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Solution

The fourth proportional to 12,380.18, 18,570.07 and 4,984.45 is: 7,476.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.18 : 18,570.07 = 4,984.45 : x
  2. Step 2: Convert to fraction form
    12,380.18/18,570.07 = 4,984.45/x
  3. Step 3: Cross multiply
    12,380.18x = 18,570.07 × 4,984.45
  4. Step 4: Simplify right side
    12,380.18x = 92,561,585.41
  5. Step 5: Solve for x
    x = 92,561,585.41/12,380.18
  6. Step 6: Final answer
    x = 7,476.59

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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.