Home / 8,477.80-11,685.54-6,611.56

Finding the Fourth Proportional to 8,477.80, 11,685.54 and 6,611.56

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Solution

The fourth proportional to 8,477.80, 11,685.54 and 6,611.56 is: 9,113.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,477.80 : 11,685.54 = 6,611.56 : x
  2. Step 2: Convert to fraction form
    8,477.80/11,685.54 = 6,611.56/x
  3. Step 3: Cross multiply
    8,477.80x = 11,685.54 × 6,611.56
  4. Step 4: Simplify right side
    8,477.80x = 77,259,648.84
  5. Step 5: Solve for x
    x = 77,259,648.84/8,477.80
  6. Step 6: Final answer
    x = 9,113.17

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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.