Home / 18,610.34-25,670.75-12,237.66

Finding the Fourth Proportional to 18,610.34, 25,670.75 and 12,237.66

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Solution

The fourth proportional to 18,610.34, 25,670.75 and 12,237.66 is: 16,880.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.34 : 25,670.75 = 12,237.66 : x
  2. Step 2: Convert to fraction form
    18,610.34/25,670.75 = 12,237.66/x
  3. Step 3: Cross multiply
    18,610.34x = 25,670.75 × 12,237.66
  4. Step 4: Simplify right side
    18,610.34x = 314,149,849.26
  5. Step 5: Solve for x
    x = 314,149,849.26/18,610.34
  6. Step 6: Final answer
    x = 16,880.40

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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.