Home / 13,386.03-18,472.73-8,347.25

Finding the Fourth Proportional to 13,386.03, 18,472.73 and 8,347.25

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Solution

The fourth proportional to 13,386.03, 18,472.73 and 8,347.25 is: 11,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.03 : 18,472.73 = 8,347.25 : x
  2. Step 2: Convert to fraction form
    13,386.03/18,472.73 = 8,347.25/x
  3. Step 3: Cross multiply
    13,386.03x = 18,472.73 × 8,347.25
  4. Step 4: Simplify right side
    13,386.03x = 154,196,361.39
  5. Step 5: Solve for x
    x = 154,196,361.39/13,386.03
  6. Step 6: Final answer
    x = 11,519.20

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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.