Home / 10,192.69-14,074.28-6,421.92

Finding the Fourth Proportional to 10,192.69, 14,074.28 and 6,421.92

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Solution

The fourth proportional to 10,192.69, 14,074.28 and 6,421.92 is: 8,867.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,192.69 : 14,074.28 = 6,421.92 : x
  2. Step 2: Convert to fraction form
    10,192.69/14,074.28 = 6,421.92/x
  3. Step 3: Cross multiply
    10,192.69x = 14,074.28 × 6,421.92
  4. Step 4: Simplify right side
    10,192.69x = 90,383,900.22
  5. Step 5: Solve for x
    x = 90,383,900.22/10,192.69
  6. Step 6: Final answer
    x = 8,867.52

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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.