Home / 18,570.11-25,646.96-12,611.75

Finding the Fourth Proportional to 18,570.11, 25,646.96 and 12,611.75

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Solution

The fourth proportional to 18,570.11, 25,646.96 and 12,611.75 is: 17,417.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.11 : 25,646.96 = 12,611.75 : x
  2. Step 2: Convert to fraction form
    18,570.11/25,646.96 = 12,611.75/x
  3. Step 3: Cross multiply
    18,570.11x = 25,646.96 × 12,611.75
  4. Step 4: Simplify right side
    18,570.11x = 323,452,951.07
  5. Step 5: Solve for x
    x = 323,452,951.07/18,570.11
  6. Step 6: Final answer
    x = 17,417.94

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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.