Home / 13,503.40-20,223.78-13,036.18

Finding the Fourth Proportional to 13,503.40, 20,223.78 and 13,036.18

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Solution

The fourth proportional to 13,503.40, 20,223.78 and 13,036.18 is: 19,524.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,503.40 : 20,223.78 = 13,036.18 : x
  2. Step 2: Convert to fraction form
    13,503.40/20,223.78 = 13,036.18/x
  3. Step 3: Cross multiply
    13,503.40x = 20,223.78 × 13,036.18
  4. Step 4: Simplify right side
    13,503.40x = 263,640,836.36
  5. Step 5: Solve for x
    x = 263,640,836.36/13,503.40
  6. Step 6: Final answer
    x = 19,524.03

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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.