Home / 11,111.81-15,337.97-6,397.25

Finding the Fourth Proportional to 11,111.81, 15,337.97 and 6,397.25

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Solution

The fourth proportional to 11,111.81, 15,337.97 and 6,397.25 is: 8,830.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.81 : 15,337.97 = 6,397.25 : x
  2. Step 2: Convert to fraction form
    11,111.81/15,337.97 = 6,397.25/x
  3. Step 3: Cross multiply
    11,111.81x = 15,337.97 × 6,397.25
  4. Step 4: Simplify right side
    11,111.81x = 98,120,796.60
  5. Step 5: Solve for x
    x = 98,120,796.60/11,111.81
  6. Step 6: Final answer
    x = 8,830.32

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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.