Home / 8,688.72-13,032.48-3,754.92

Finding the Fourth Proportional to 8,688.72, 13,032.48 and 3,754.92

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Solution

The fourth proportional to 8,688.72, 13,032.48 and 3,754.92 is: 5,632.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.72 : 13,032.48 = 3,754.92 : x
  2. Step 2: Convert to fraction form
    8,688.72/13,032.48 = 3,754.92/x
  3. Step 3: Cross multiply
    8,688.72x = 13,032.48 × 3,754.92
  4. Step 4: Simplify right side
    8,688.72x = 48,935,919.80
  5. Step 5: Solve for x
    x = 48,935,919.80/8,688.72
  6. Step 6: Final answer
    x = 5,632.12

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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.