Home / 13,455.60-20,176.92-4,690.32

Finding the Fourth Proportional to 13,455.60, 20,176.92 and 4,690.32

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Solution

The fourth proportional to 13,455.60, 20,176.92 and 4,690.32 is: 7,033.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.60 : 20,176.92 = 4,690.32 : x
  2. Step 2: Convert to fraction form
    13,455.60/20,176.92 = 4,690.32/x
  3. Step 3: Cross multiply
    13,455.60x = 20,176.92 × 4,690.32
  4. Step 4: Simplify right side
    13,455.60x = 94,636,211.41
  5. Step 5: Solve for x
    x = 94,636,211.41/13,455.60
  6. Step 6: Final answer
    x = 7,033.22

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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.