Home / 12,578.96-18,871.47-4,681.73

Finding the Fourth Proportional to 12,578.96, 18,871.47 and 4,681.73

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Solution

The fourth proportional to 12,578.96, 18,871.47 and 4,681.73 is: 7,023.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578.96 : 18,871.47 = 4,681.73 : x
  2. Step 2: Convert to fraction form
    12,578.96/18,871.47 = 4,681.73/x
  3. Step 3: Cross multiply
    12,578.96x = 18,871.47 × 4,681.73
  4. Step 4: Simplify right side
    12,578.96x = 88,351,032.89
  5. Step 5: Solve for x
    x = 88,351,032.89/12,578.96
  6. Step 6: Final answer
    x = 7,023.72

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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.