Home / 12,398.39-18,574.14-9,611.41

Finding the Fourth Proportional to 12,398.39, 18,574.14 and 9,611.41

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Solution

The fourth proportional to 12,398.39, 18,574.14 and 9,611.41 is: 14,398.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398.39 : 18,574.14 = 9,611.41 : x
  2. Step 2: Convert to fraction form
    12,398.39/18,574.14 = 9,611.41/x
  3. Step 3: Cross multiply
    12,398.39x = 18,574.14 × 9,611.41
  4. Step 4: Simplify right side
    12,398.39x = 178,523,534.01
  5. Step 5: Solve for x
    x = 178,523,534.01/12,398.39
  6. Step 6: Final answer
    x = 14,398.93

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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.