Home / 13,817.34-20,719.59-4,455.60

Finding the Fourth Proportional to 13,817.34, 20,719.59 and 4,455.60

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Solution

The fourth proportional to 13,817.34, 20,719.59 and 4,455.60 is: 6,681.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.34 : 20,719.59 = 4,455.60 : x
  2. Step 2: Convert to fraction form
    13,817.34/20,719.59 = 4,455.60/x
  3. Step 3: Cross multiply
    13,817.34x = 20,719.59 × 4,455.60
  4. Step 4: Simplify right side
    13,817.34x = 92,318,205.20
  5. Step 5: Solve for x
    x = 92,318,205.20/13,817.34
  6. Step 6: Final answer
    x = 6,681.33

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1.5x scale

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.