Home / 12,429.73-18,644.60-5,032.81

Finding the Fourth Proportional to 12,429.73, 18,644.60 and 5,032.81

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Solution

The fourth proportional to 12,429.73, 18,644.60 and 5,032.81 is: 7,549.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.73 : 18,644.60 = 5,032.81 : x
  2. Step 2: Convert to fraction form
    12,429.73/18,644.60 = 5,032.81/x
  3. Step 3: Cross multiply
    12,429.73x = 18,644.60 × 5,032.81
  4. Step 4: Simplify right side
    12,429.73x = 93,834,729.33
  5. Step 5: Solve for x
    x = 93,834,729.33/12,429.73
  6. Step 6: Final answer
    x = 7,549.22

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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.