Home / 13,751.60-20,628.51-4,392.95

Finding the Fourth Proportional to 13,751.60, 20,628.51 and 4,392.95

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Solution

The fourth proportional to 13,751.60, 20,628.51 and 4,392.95 is: 6,589.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.60 : 20,628.51 = 4,392.95 : x
  2. Step 2: Convert to fraction form
    13,751.60/20,628.51 = 4,392.95/x
  3. Step 3: Cross multiply
    13,751.60x = 20,628.51 × 4,392.95
  4. Step 4: Simplify right side
    13,751.60x = 90,619,909.86
  5. Step 5: Solve for x
    x = 90,619,909.86/13,751.60
  6. Step 6: Final answer
    x = 6,589.77

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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.