Home / 19,162.08-28,743.60-5,311.04

Finding the Fourth Proportional to 19,162.08, 28,743.60 and 5,311.04

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Solution

The fourth proportional to 19,162.08, 28,743.60 and 5,311.04 is: 7,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,162.08 : 28,743.60 = 5,311.04 : x
  2. Step 2: Convert to fraction form
    19,162.08/28,743.60 = 5,311.04/x
  3. Step 3: Cross multiply
    19,162.08x = 28,743.60 × 5,311.04
  4. Step 4: Simplify right side
    19,162.08x = 152,658,409.34
  5. Step 5: Solve for x
    x = 152,658,409.34/19,162.08
  6. Step 6: Final answer
    x = 7,966.69

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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.