Home / 13,641.45-20,465.26-4,281.44

Finding the Fourth Proportional to 13,641.45, 20,465.26 and 4,281.44

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Solution

The fourth proportional to 13,641.45, 20,465.26 and 4,281.44 is: 6,423.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.45 : 20,465.26 = 4,281.44 : x
  2. Step 2: Convert to fraction form
    13,641.45/20,465.26 = 4,281.44/x
  3. Step 3: Cross multiply
    13,641.45x = 20,465.26 × 4,281.44
  4. Step 4: Simplify right side
    13,641.45x = 87,620,669.74
  5. Step 5: Solve for x
    x = 87,620,669.74/13,641.45
  6. Step 6: Final answer
    x = 6,423.12

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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.