Home / 12,602.43-18,902.87-5,580.39

Finding the Fourth Proportional to 12,602.43, 18,902.87 and 5,580.39

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Solution

The fourth proportional to 12,602.43, 18,902.87 and 5,580.39 is: 8,370.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602.43 : 18,902.87 = 5,580.39 : x
  2. Step 2: Convert to fraction form
    12,602.43/18,902.87 = 5,580.39/x
  3. Step 3: Cross multiply
    12,602.43x = 18,902.87 × 5,580.39
  4. Step 4: Simplify right side
    12,602.43x = 105,485,386.72
  5. Step 5: Solve for x
    x = 105,485,386.72/12,602.43
  6. Step 6: Final answer
    x = 8,370.24

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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.