Home / 11,398.09-15,730.16-6,363.30

Finding the Fourth Proportional to 11,398.09, 15,730.16 and 6,363.30

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Solution

The fourth proportional to 11,398.09, 15,730.16 and 6,363.30 is: 8,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,398.09 : 15,730.16 = 6,363.30 : x
  2. Step 2: Convert to fraction form
    11,398.09/15,730.16 = 6,363.30/x
  3. Step 3: Cross multiply
    11,398.09x = 15,730.16 × 6,363.30
  4. Step 4: Simplify right side
    11,398.09x = 100,095,695.31
  5. Step 5: Solve for x
    x = 100,095,695.31/11,398.09
  6. Step 6: Final answer
    x = 8,781.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.