Home / 13,657.24-20,485.74-4,423.24

Finding the Fourth Proportional to 13,657.24, 20,485.74 and 4,423.24

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Solution

The fourth proportional to 13,657.24, 20,485.74 and 4,423.24 is: 6,634.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,657.24 : 20,485.74 = 4,423.24 : x
  2. Step 2: Convert to fraction form
    13,657.24/20,485.74 = 4,423.24/x
  3. Step 3: Cross multiply
    13,657.24x = 20,485.74 × 4,423.24
  4. Step 4: Simplify right side
    13,657.24x = 90,613,344.60
  5. Step 5: Solve for x
    x = 90,613,344.60/13,657.24
  6. Step 6: Final answer
    x = 6,634.82

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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.