Home / 8,636.47-12,955.52-3,442.75

Finding the Fourth Proportional to 8,636.47, 12,955.52 and 3,442.75

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Solution

The fourth proportional to 8,636.47, 12,955.52 and 3,442.75 is: 5,164.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.47 : 12,955.52 = 3,442.75 : x
  2. Step 2: Convert to fraction form
    8,636.47/12,955.52 = 3,442.75/x
  3. Step 3: Cross multiply
    8,636.47x = 12,955.52 × 3,442.75
  4. Step 4: Simplify right side
    8,636.47x = 44,602,599.27
  5. Step 5: Solve for x
    x = 44,602,599.27/8,636.47
  6. Step 6: Final answer
    x = 5,164.45

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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.