Home / 11,111.04-15,331.41-6,394.41

Finding the Fourth Proportional to 11,111.04, 15,331.41 and 6,394.41

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Solution

The fourth proportional to 11,111.04, 15,331.41 and 6,394.41 is: 8,823.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.04 : 15,331.41 = 6,394.41 : x
  2. Step 2: Convert to fraction form
    11,111.04/15,331.41 = 6,394.41/x
  3. Step 3: Cross multiply
    11,111.04x = 15,331.41 × 6,394.41
  4. Step 4: Simplify right side
    11,111.04x = 98,035,321.42
  5. Step 5: Solve for x
    x = 98,035,321.42/11,111.04
  6. Step 6: Final answer
    x = 8,823.24

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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.