Home / 13,455.63-20,185.27-4,689.41

Finding the Fourth Proportional to 13,455.63, 20,185.27 and 4,689.41

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Solution

The fourth proportional to 13,455.63, 20,185.27 and 4,689.41 is: 7,034.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.63 : 20,185.27 = 4,689.41 : x
  2. Step 2: Convert to fraction form
    13,455.63/20,185.27 = 4,689.41/x
  3. Step 3: Cross multiply
    13,455.63x = 20,185.27 × 4,689.41
  4. Step 4: Simplify right side
    13,455.63x = 94,656,894.34
  5. Step 5: Solve for x
    x = 94,656,894.34/13,455.63
  6. Step 6: Final answer
    x = 7,034.74

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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.