Home / 13,910.80-20,864.02-4,550.74

Finding the Fourth Proportional to 13,910.80, 20,864.02 and 4,550.74

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Solution

The fourth proportional to 13,910.80, 20,864.02 and 4,550.74 is: 6,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.80 : 20,864.02 = 4,550.74 : x
  2. Step 2: Convert to fraction form
    13,910.80/20,864.02 = 4,550.74/x
  3. Step 3: Cross multiply
    13,910.80x = 20,864.02 × 4,550.74
  4. Step 4: Simplify right side
    13,910.80x = 94,946,730.37
  5. Step 5: Solve for x
    x = 94,946,730.37/13,910.80
  6. Step 6: Final answer
    x = 6,825.40

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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.