Home / 19,028.79-28,542.65-8,508.51

Finding the Fourth Proportional to 19,028.79, 28,542.65 and 8,508.51

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Solution

The fourth proportional to 19,028.79, 28,542.65 and 8,508.51 is: 12,762.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,028.79 : 28,542.65 = 8,508.51 : x
  2. Step 2: Convert to fraction form
    19,028.79/28,542.65 = 8,508.51/x
  3. Step 3: Cross multiply
    19,028.79x = 28,542.65 × 8,508.51
  4. Step 4: Simplify right side
    19,028.79x = 242,855,380.41
  5. Step 5: Solve for x
    x = 242,855,380.41/19,028.79
  6. Step 6: Final answer
    x = 12,762.52

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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.