Home / 13,207.20-19,804.40-7,357.60

Finding the Fourth Proportional to 13,207.20, 19,804.40 and 7,357.60

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Solution

The fourth proportional to 13,207.20, 19,804.40 and 7,357.60 is: 11,032.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.20 : 19,804.40 = 7,357.60 : x
  2. Step 2: Convert to fraction form
    13,207.20/19,804.40 = 7,357.60/x
  3. Step 3: Cross multiply
    13,207.20x = 19,804.40 × 7,357.60
  4. Step 4: Simplify right side
    13,207.20x = 145,712,853.44
  5. Step 5: Solve for x
    x = 145,712,853.44/13,207.20
  6. Step 6: Final answer
    x = 11,032.83

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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.