Home / 12,458.12-18,683.52-6,611.60

Finding the Fourth Proportional to 12,458.12, 18,683.52 and 6,611.60

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Solution

The fourth proportional to 12,458.12, 18,683.52 and 6,611.60 is: 9,915.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.12 : 18,683.52 = 6,611.60 : x
  2. Step 2: Convert to fraction form
    12,458.12/18,683.52 = 6,611.60/x
  3. Step 3: Cross multiply
    12,458.12x = 18,683.52 × 6,611.60
  4. Step 4: Simplify right side
    12,458.12x = 123,527,960.83
  5. Step 5: Solve for x
    x = 123,527,960.83/12,458.12
  6. Step 6: Final answer
    x = 9,915.46

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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.