Home / 13,603.54-20,386.16-10,817.84

Finding the Fourth Proportional to 13,603.54, 20,386.16 and 10,817.84

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Solution

The fourth proportional to 13,603.54, 20,386.16 and 10,817.84 is: 16,211.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603.54 : 20,386.16 = 10,817.84 : x
  2. Step 2: Convert to fraction form
    13,603.54/20,386.16 = 10,817.84/x
  3. Step 3: Cross multiply
    13,603.54x = 20,386.16 × 10,817.84
  4. Step 4: Simplify right side
    13,603.54x = 220,534,217.09
  5. Step 5: Solve for x
    x = 220,534,217.09/13,603.54
  6. Step 6: Final answer
    x = 16,211.53

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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.