Home / 12,219.24-18,317.34-4,426.20

Finding the Fourth Proportional to 12,219.24, 18,317.34 and 4,426.20

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Solution

The fourth proportional to 12,219.24, 18,317.34 and 4,426.20 is: 6,635.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.24 : 18,317.34 = 4,426.20 : x
  2. Step 2: Convert to fraction form
    12,219.24/18,317.34 = 4,426.20/x
  3. Step 3: Cross multiply
    12,219.24x = 18,317.34 × 4,426.20
  4. Step 4: Simplify right side
    12,219.24x = 81,076,210.31
  5. Step 5: Solve for x
    x = 81,076,210.31/12,219.24
  6. Step 6: Final answer
    x = 6,635.13

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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.