Home / 11,038.08-15,194.88-9,705.60

Finding the Fourth Proportional to 11,038.08, 15,194.88 and 9,705.60

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Solution

The fourth proportional to 11,038.08, 15,194.88 and 9,705.60 is: 13,360.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,038.08 : 15,194.88 = 9,705.60 : x
  2. Step 2: Convert to fraction form
    11,038.08/15,194.88 = 9,705.60/x
  3. Step 3: Cross multiply
    11,038.08x = 15,194.88 × 9,705.60
  4. Step 4: Simplify right side
    11,038.08x = 147,475,427.33
  5. Step 5: Solve for x
    x = 147,475,427.33/11,038.08
  6. Step 6: Final answer
    x = 13,360.61

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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.