Home / 15,380.12-23,070.83-7,979.83

Finding the Fourth Proportional to 15,380.12, 23,070.83 and 7,979.83

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Solution

The fourth proportional to 15,380.12, 23,070.83 and 7,979.83 is: 11,970.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,380.12 : 23,070.83 = 7,979.83 : x
  2. Step 2: Convert to fraction form
    15,380.12/23,070.83 = 7,979.83/x
  3. Step 3: Cross multiply
    15,380.12x = 23,070.83 × 7,979.83
  4. Step 4: Simplify right side
    15,380.12x = 184,101,203.78
  5. Step 5: Solve for x
    x = 184,101,203.78/15,380.12
  6. Step 6: Final answer
    x = 11,970.07

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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.