Home / 13,702.02-18,908.82-7,414.40

Finding the Fourth Proportional to 13,702.02, 18,908.82 and 7,414.40

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Solution

The fourth proportional to 13,702.02, 18,908.82 and 7,414.40 is: 10,231.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702.02 : 18,908.82 = 7,414.40 : x
  2. Step 2: Convert to fraction form
    13,702.02/18,908.82 = 7,414.40/x
  3. Step 3: Cross multiply
    13,702.02x = 18,908.82 × 7,414.40
  4. Step 4: Simplify right side
    13,702.02x = 140,197,460.46
  5. Step 5: Solve for x
    x = 140,197,460.46/13,702.02
  6. Step 6: Final answer
    x = 10,231.88

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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.