Home / 13,346.28-18,418.73-7,378.00

Finding the Fourth Proportional to 13,346.28, 18,418.73 and 7,378.00

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Solution

The fourth proportional to 13,346.28, 18,418.73 and 7,378.00 is: 10,182.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.28 : 18,418.73 = 7,378.00 : x
  2. Step 2: Convert to fraction form
    13,346.28/18,418.73 = 7,378.00/x
  3. Step 3: Cross multiply
    13,346.28x = 18,418.73 × 7,378.00
  4. Step 4: Simplify right side
    13,346.28x = 135,893,307.00
  5. Step 5: Solve for x
    x = 135,893,307.00/13,346.28
  6. Step 6: Final answer
    x = 10,182.11

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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.