Home / 13,557.44-18,708.72-7,508

Finding the Fourth Proportional to 13,557.44, 18,708.72 and 7,508

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Solution

The fourth proportional to 13,557.44, 18,708.72 and 7,508 is: 10,360.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.44 : 18,708.72 = 7,508 : x
  2. Step 2: Convert to fraction form
    13,557.44/18,708.72 = 7,508/x
  3. Step 3: Cross multiply
    13,557.44x = 18,708.72 × 7,508
  4. Step 4: Simplify right side
    13,557.44x = 140,465,069.76
  5. Step 5: Solve for x
    x = 140,465,069.76/13,557.44
  6. Step 6: Final answer
    x = 10,360.74

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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.