Home / 13,618.24-20,423.04-4,382.08

Finding the Fourth Proportional to 13,618.24, 20,423.04 and 4,382.08

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Solution

The fourth proportional to 13,618.24, 20,423.04 and 4,382.08 is: 6,571.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.24 : 20,423.04 = 4,382.08 : x
  2. Step 2: Convert to fraction form
    13,618.24/20,423.04 = 4,382.08/x
  3. Step 3: Cross multiply
    13,618.24x = 20,423.04 × 4,382.08
  4. Step 4: Simplify right side
    13,618.24x = 89,495,395.12
  5. Step 5: Solve for x
    x = 89,495,395.12/13,618.24
  6. Step 6: Final answer
    x = 6,571.73

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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.