Home / 11,448.81-17,148.70-8,644.59

Finding the Fourth Proportional to 11,448.81, 17,148.70 and 8,644.59

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Solution

The fourth proportional to 11,448.81, 17,148.70 and 8,644.59 is: 12,948.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,448.81 : 17,148.70 = 8,644.59 : x
  2. Step 2: Convert to fraction form
    11,448.81/17,148.70 = 8,644.59/x
  3. Step 3: Cross multiply
    11,448.81x = 17,148.70 × 8,644.59
  4. Step 4: Simplify right side
    11,448.81x = 148,243,480.53
  5. Step 5: Solve for x
    x = 148,243,480.53/11,448.81
  6. Step 6: Final answer
    x = 12,948.37

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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.