Home / 11,109.95-15,333.08-6,394.13

Finding the Fourth Proportional to 11,109.95, 15,333.08 and 6,394.13

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Solution

The fourth proportional to 11,109.95, 15,333.08 and 6,394.13 is: 8,824.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.95 : 15,333.08 = 6,394.13 : x
  2. Step 2: Convert to fraction form
    11,109.95/15,333.08 = 6,394.13/x
  3. Step 3: Cross multiply
    11,109.95x = 15,333.08 × 6,394.13
  4. Step 4: Simplify right side
    11,109.95x = 98,041,706.82
  5. Step 5: Solve for x
    x = 98,041,706.82/11,109.95
  6. Step 6: Final answer
    x = 8,824.68

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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.