Home / 15,389.44-21,235.60-9,424.60

Finding the Fourth Proportional to 15,389.44, 21,235.60 and 9,424.60

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Solution

The fourth proportional to 15,389.44, 21,235.60 and 9,424.60 is: 13,004.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.44 : 21,235.60 = 9,424.60 : x
  2. Step 2: Convert to fraction form
    15,389.44/21,235.60 = 9,424.60/x
  3. Step 3: Cross multiply
    15,389.44x = 21,235.60 × 9,424.60
  4. Step 4: Simplify right side
    15,389.44x = 200,137,035.76
  5. Step 5: Solve for x
    x = 200,137,035.76/15,389.44
  6. Step 6: Final answer
    x = 13,004.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.