Home / 12,571.59-18,840.36-4,776.15

Finding the Fourth Proportional to 12,571.59, 18,840.36 and 4,776.15

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Solution

The fourth proportional to 12,571.59, 18,840.36 and 4,776.15 is: 7,157.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571.59 : 18,840.36 = 4,776.15 : x
  2. Step 2: Convert to fraction form
    12,571.59/18,840.36 = 4,776.15/x
  3. Step 3: Cross multiply
    12,571.59x = 18,840.36 × 4,776.15
  4. Step 4: Simplify right side
    12,571.59x = 89,984,385.41
  5. Step 5: Solve for x
    x = 89,984,385.41/12,571.59
  6. Step 6: Final answer
    x = 7,157.76

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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.