Home / 14,397.40-21,583.32-5,638.60

Finding the Fourth Proportional to 14,397.40, 21,583.32 and 5,638.60

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Solution

The fourth proportional to 14,397.40, 21,583.32 and 5,638.60 is: 8,452.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,397.40 : 21,583.32 = 5,638.60 : x
  2. Step 2: Convert to fraction form
    14,397.40/21,583.32 = 5,638.60/x
  3. Step 3: Cross multiply
    14,397.40x = 21,583.32 × 5,638.60
  4. Step 4: Simplify right side
    14,397.40x = 121,699,708.15
  5. Step 5: Solve for x
    x = 121,699,708.15/14,397.40
  6. Step 6: Final answer
    x = 8,452.89

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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.