Home / 10,208.80-14,087.28-5,732.20

Finding the Fourth Proportional to 10,208.80, 14,087.28 and 5,732.20

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Solution

The fourth proportional to 10,208.80, 14,087.28 and 5,732.20 is: 7,909.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208.80 : 14,087.28 = 5,732.20 : x
  2. Step 2: Convert to fraction form
    10,208.80/14,087.28 = 5,732.20/x
  3. Step 3: Cross multiply
    10,208.80x = 14,087.28 × 5,732.20
  4. Step 4: Simplify right side
    10,208.80x = 80,751,106.42
  5. Step 5: Solve for x
    x = 80,751,106.42/10,208.80
  6. Step 6: Final answer
    x = 7,909.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.