Home / 18,178.47-25,072.88-13,702.41

Finding the Fourth Proportional to 18,178.47, 25,072.88 and 13,702.41

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Solution

The fourth proportional to 18,178.47, 25,072.88 and 13,702.41 is: 18,899.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178.47 : 25,072.88 = 13,702.41 : x
  2. Step 2: Convert to fraction form
    18,178.47/25,072.88 = 13,702.41/x
  3. Step 3: Cross multiply
    18,178.47x = 25,072.88 × 13,702.41
  4. Step 4: Simplify right side
    18,178.47x = 343,558,813.13
  5. Step 5: Solve for x
    x = 343,558,813.13/18,178.47
  6. Step 6: Final answer
    x = 18,899.22

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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.