Home / 10,955.08-16,430.22-3,162.20

Finding the Fourth Proportional to 10,955.08, 16,430.22 and 3,162.20

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Solution

The fourth proportional to 10,955.08, 16,430.22 and 3,162.20 is: 4,742.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.08 : 16,430.22 = 3,162.20 : x
  2. Step 2: Convert to fraction form
    10,955.08/16,430.22 = 3,162.20/x
  3. Step 3: Cross multiply
    10,955.08x = 16,430.22 × 3,162.20
  4. Step 4: Simplify right side
    10,955.08x = 51,955,641.68
  5. Step 5: Solve for x
    x = 51,955,641.68/10,955.08
  6. Step 6: Final answer
    x = 4,742.61

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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.