Home / 14,140.80-21,210.30-5,375.52

Finding the Fourth Proportional to 14,140.80, 21,210.30 and 5,375.52

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Solution

The fourth proportional to 14,140.80, 21,210.30 and 5,375.52 is: 8,062.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.80 : 21,210.30 = 5,375.52 : x
  2. Step 2: Convert to fraction form
    14,140.80/21,210.30 = 5,375.52/x
  3. Step 3: Cross multiply
    14,140.80x = 21,210.30 × 5,375.52
  4. Step 4: Simplify right side
    14,140.80x = 114,016,391.86
  5. Step 5: Solve for x
    x = 114,016,391.86/14,140.80
  6. Step 6: Final answer
    x = 8,062.94

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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.