Home / 15,718.72-23,556.60-8,688.32

Finding the Fourth Proportional to 15,718.72, 23,556.60 and 8,688.32

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Solution

The fourth proportional to 15,718.72, 23,556.60 and 8,688.32 is: 13,020.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,718.72 : 23,556.60 = 8,688.32 : x
  2. Step 2: Convert to fraction form
    15,718.72/23,556.60 = 8,688.32/x
  3. Step 3: Cross multiply
    15,718.72x = 23,556.60 × 8,688.32
  4. Step 4: Simplify right side
    15,718.72x = 204,667,278.91
  5. Step 5: Solve for x
    x = 204,667,278.91/15,718.72
  6. Step 6: Final answer
    x = 13,020.61

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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.