Home / 18,606.07-25,661.53-12,239.20

Finding the Fourth Proportional to 18,606.07, 25,661.53 and 12,239.20

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Solution

The fourth proportional to 18,606.07, 25,661.53 and 12,239.20 is: 16,880.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.07 : 25,661.53 = 12,239.20 : x
  2. Step 2: Convert to fraction form
    18,606.07/25,661.53 = 12,239.20/x
  3. Step 3: Cross multiply
    18,606.07x = 25,661.53 × 12,239.20
  4. Step 4: Simplify right side
    18,606.07x = 314,076,408.47
  5. Step 5: Solve for x
    x = 314,076,408.47/18,606.07
  6. Step 6: Final answer
    x = 16,880.32

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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.