Home / 13,268.60-19,902.90-7,124.60

Finding the Fourth Proportional to 13,268.60, 19,902.90 and 7,124.60

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Solution

The fourth proportional to 13,268.60, 19,902.90 and 7,124.60 is: 10,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.60 : 19,902.90 = 7,124.60 : x
  2. Step 2: Convert to fraction form
    13,268.60/19,902.90 = 7,124.60/x
  3. Step 3: Cross multiply
    13,268.60x = 19,902.90 × 7,124.60
  4. Step 4: Simplify right side
    13,268.60x = 141,800,201.34
  5. Step 5: Solve for x
    x = 141,800,201.34/13,268.60
  6. Step 6: Final answer
    x = 10,686.90

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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.