Home / 12,458.82-18,688.35-3,575.19

Finding the Fourth Proportional to 12,458.82, 18,688.35 and 3,575.19

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Solution

The fourth proportional to 12,458.82, 18,688.35 and 3,575.19 is: 5,362.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.82 : 18,688.35 = 3,575.19 : x
  2. Step 2: Convert to fraction form
    12,458.82/18,688.35 = 3,575.19/x
  3. Step 3: Cross multiply
    12,458.82x = 18,688.35 × 3,575.19
  4. Step 4: Simplify right side
    12,458.82x = 66,814,402.04
  5. Step 5: Solve for x
    x = 66,814,402.04/12,458.82
  6. Step 6: Final answer
    x = 5,362.82

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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.