Home / 18,954.89-26,152.49-12,240.80

Finding the Fourth Proportional to 18,954.89, 26,152.49 and 12,240.80

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Solution

The fourth proportional to 18,954.89, 26,152.49 and 12,240.80 is: 16,888.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.89 : 26,152.49 = 12,240.80 : x
  2. Step 2: Convert to fraction form
    18,954.89/26,152.49 = 12,240.80/x
  3. Step 3: Cross multiply
    18,954.89x = 26,152.49 × 12,240.80
  4. Step 4: Simplify right side
    18,954.89x = 320,127,299.43
  5. Step 5: Solve for x
    x = 320,127,299.43/18,954.89
  6. Step 6: Final answer
    x = 16,888.91

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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.