Home / 10,545.12-15,809.88-6,384.22

Finding the Fourth Proportional to 10,545.12, 15,809.88 and 6,384.22

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Solution

The fourth proportional to 10,545.12, 15,809.88 and 6,384.22 is: 9,571.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,545.12 : 15,809.88 = 6,384.22 : x
  2. Step 2: Convert to fraction form
    10,545.12/15,809.88 = 6,384.22/x
  3. Step 3: Cross multiply
    10,545.12x = 15,809.88 × 6,384.22
  4. Step 4: Simplify right side
    10,545.12x = 100,933,752.09
  5. Step 5: Solve for x
    x = 100,933,752.09/10,545.12
  6. Step 6: Final answer
    x = 9,571.61

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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.