Home / 8,490.26-12,730.40-2,565.36

Finding the Fourth Proportional to 8,490.26, 12,730.40 and 2,565.36

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Solution

The fourth proportional to 8,490.26, 12,730.40 and 2,565.36 is: 3,846.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.26 : 12,730.40 = 2,565.36 : x
  2. Step 2: Convert to fraction form
    8,490.26/12,730.40 = 2,565.36/x
  3. Step 3: Cross multiply
    8,490.26x = 12,730.40 × 2,565.36
  4. Step 4: Simplify right side
    8,490.26x = 32,658,058.94
  5. Step 5: Solve for x
    x = 32,658,058.94/8,490.26
  6. Step 6: Final answer
    x = 3,846.53

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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.