Home / 12,611.62-18,927.51-5,686.66

Finding the Fourth Proportional to 12,611.62, 18,927.51 and 5,686.66

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Solution

The fourth proportional to 12,611.62, 18,927.51 and 5,686.66 is: 8,534.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611.62 : 18,927.51 = 5,686.66 : x
  2. Step 2: Convert to fraction form
    12,611.62/18,927.51 = 5,686.66/x
  3. Step 3: Cross multiply
    12,611.62x = 18,927.51 × 5,686.66
  4. Step 4: Simplify right side
    12,611.62x = 107,634,314.02
  5. Step 5: Solve for x
    x = 107,634,314.02/12,611.62
  6. Step 6: Final answer
    x = 8,534.54

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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.