Home / 8,968.82-13,453.28-3,125.40

Finding the Fourth Proportional to 8,968.82, 13,453.28 and 3,125.40

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Solution

The fourth proportional to 8,968.82, 13,453.28 and 3,125.40 is: 4,688.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.82 : 13,453.28 = 3,125.40 : x
  2. Step 2: Convert to fraction form
    8,968.82/13,453.28 = 3,125.40/x
  3. Step 3: Cross multiply
    8,968.82x = 13,453.28 × 3,125.40
  4. Step 4: Simplify right side
    8,968.82x = 42,046,881.31
  5. Step 5: Solve for x
    x = 42,046,881.31/8,968.82
  6. Step 6: Final answer
    x = 4,688.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.