Home / 19,224.20-28,840.28-8,130.98

Finding the Fourth Proportional to 19,224.20, 28,840.28 and 8,130.98

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Solution

The fourth proportional to 19,224.20, 28,840.28 and 8,130.98 is: 12,198.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,224.20 : 28,840.28 = 8,130.98 : x
  2. Step 2: Convert to fraction form
    19,224.20/28,840.28 = 8,130.98/x
  3. Step 3: Cross multiply
    19,224.20x = 28,840.28 × 8,130.98
  4. Step 4: Simplify right side
    19,224.20x = 234,499,555.02
  5. Step 5: Solve for x
    x = 234,499,555.02/19,224.20
  6. Step 6: Final answer
    x = 12,198.15

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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.