Home / 13,268.42-19,902.68-12,603.28

Finding the Fourth Proportional to 13,268.42, 19,902.68 and 12,603.28

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Solution

The fourth proportional to 13,268.42, 19,902.68 and 12,603.28 is: 18,904.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.42 : 19,902.68 = 12,603.28 : x
  2. Step 2: Convert to fraction form
    13,268.42/19,902.68 = 12,603.28/x
  3. Step 3: Cross multiply
    13,268.42x = 19,902.68 × 12,603.28
  4. Step 4: Simplify right side
    13,268.42x = 250,838,886.26
  5. Step 5: Solve for x
    x = 250,838,886.26/13,268.42
  6. Step 6: Final answer
    x = 18,904.96

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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.