Home / 19,298.64-28,895.90-12,618.56

Finding the Fourth Proportional to 19,298.64, 28,895.90 and 12,618.56

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Solution

The fourth proportional to 19,298.64, 28,895.90 and 12,618.56 is: 18,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,298.64 : 28,895.90 = 12,618.56 : x
  2. Step 2: Convert to fraction form
    19,298.64/28,895.90 = 12,618.56/x
  3. Step 3: Cross multiply
    19,298.64x = 28,895.90 × 12,618.56
  4. Step 4: Simplify right side
    19,298.64x = 364,624,647.90
  5. Step 5: Solve for x
    x = 364,624,647.90/19,298.64
  6. Step 6: Final answer
    x = 18,893.80

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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.