Home / 18,358.83-27,537.26-12,438.18

Finding the Fourth Proportional to 18,358.83, 27,537.26 and 12,438.18

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Solution

The fourth proportional to 18,358.83, 27,537.26 and 12,438.18 is: 18,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.83 : 27,537.26 = 12,438.18 : x
  2. Step 2: Convert to fraction form
    18,358.83/27,537.26 = 12,438.18/x
  3. Step 3: Cross multiply
    18,358.83x = 27,537.26 × 12,438.18
  4. Step 4: Simplify right side
    18,358.83x = 342,513,334.40
  5. Step 5: Solve for x
    x = 342,513,334.40/18,358.83
  6. Step 6: Final answer
    x = 18,656.60

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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.