Home / 8,875.79-12,249.45-6,633.77

Finding the Fourth Proportional to 8,875.79, 12,249.45 and 6,633.77

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Solution

The fourth proportional to 8,875.79, 12,249.45 and 6,633.77 is: 9,155.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.79 : 12,249.45 = 6,633.77 : x
  2. Step 2: Convert to fraction form
    8,875.79/12,249.45 = 6,633.77/x
  3. Step 3: Cross multiply
    8,875.79x = 12,249.45 × 6,633.77
  4. Step 4: Simplify right side
    8,875.79x = 81,259,972.68
  5. Step 5: Solve for x
    x = 81,259,972.68/8,875.79
  6. Step 6: Final answer
    x = 9,155.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.