Home / 12,431.58-18,636.90-5,041.22

Finding the Fourth Proportional to 12,431.58, 18,636.90 and 5,041.22

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Solution

The fourth proportional to 12,431.58, 18,636.90 and 5,041.22 is: 7,557.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431.58 : 18,636.90 = 5,041.22 : x
  2. Step 2: Convert to fraction form
    12,431.58/18,636.90 = 5,041.22/x
  3. Step 3: Cross multiply
    12,431.58x = 18,636.90 × 5,041.22
  4. Step 4: Simplify right side
    12,431.58x = 93,952,600.93
  5. Step 5: Solve for x
    x = 93,952,600.93/12,431.58
  6. Step 6: Final answer
    x = 7,557.58

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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.