Home / 13,702.14-18,921.72-10,085.38

Finding the Fourth Proportional to 13,702.14, 18,921.72 and 10,085.38

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Solution

The fourth proportional to 13,702.14, 18,921.72 and 10,085.38 is: 13,927.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702.14 : 18,921.72 = 10,085.38 : x
  2. Step 2: Convert to fraction form
    13,702.14/18,921.72 = 10,085.38/x
  3. Step 3: Cross multiply
    13,702.14x = 18,921.72 × 10,085.38
  4. Step 4: Simplify right side
    13,702.14x = 190,832,736.45
  5. Step 5: Solve for x
    x = 190,832,736.45/13,702.14
  6. Step 6: Final answer
    x = 13,927.22

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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.