Home / 11,106.90-15,328.38-6,328.31

Finding the Fourth Proportional to 11,106.90, 15,328.38 and 6,328.31

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Solution

The fourth proportional to 11,106.90, 15,328.38 and 6,328.31 is: 8,733.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.90 : 15,328.38 = 6,328.31 : x
  2. Step 2: Convert to fraction form
    11,106.90/15,328.38 = 6,328.31/x
  3. Step 3: Cross multiply
    11,106.90x = 15,328.38 × 6,328.31
  4. Step 4: Simplify right side
    11,106.90x = 97,002,663.80
  5. Step 5: Solve for x
    x = 97,002,663.80/11,106.90
  6. Step 6: Final answer
    x = 8,733.55

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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.