Home / 15,409.35-23,116.68-4,879.22

Finding the Fourth Proportional to 15,409.35, 23,116.68 and 4,879.22

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Solution

The fourth proportional to 15,409.35, 23,116.68 and 4,879.22 is: 7,319.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409.35 : 23,116.68 = 4,879.22 : x
  2. Step 2: Convert to fraction form
    15,409.35/23,116.68 = 4,879.22/x
  3. Step 3: Cross multiply
    15,409.35x = 23,116.68 × 4,879.22
  4. Step 4: Simplify right side
    15,409.35x = 112,791,251.81
  5. Step 5: Solve for x
    x = 112,791,251.81/15,409.35
  6. Step 6: Final answer
    x = 7,319.66

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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.