Home / 11,055.90-15,258.60-6,339.28

Finding the Fourth Proportional to 11,055.90, 15,258.60 and 6,339.28

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Solution

The fourth proportional to 11,055.90, 15,258.60 and 6,339.28 is: 8,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,055.90 : 15,258.60 = 6,339.28 : x
  2. Step 2: Convert to fraction form
    11,055.90/15,258.60 = 6,339.28/x
  3. Step 3: Cross multiply
    11,055.90x = 15,258.60 × 6,339.28
  4. Step 4: Simplify right side
    11,055.90x = 96,728,537.81
  5. Step 5: Solve for x
    x = 96,728,537.81/11,055.90
  6. Step 6: Final answer
    x = 8,749.04

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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.