Home / 11,366.40-15,705.60-9,292.80

Finding the Fourth Proportional to 11,366.40, 15,705.60 and 9,292.80

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Solution

The fourth proportional to 11,366.40, 15,705.60 and 9,292.80 is: 12,840.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,366.40 : 15,705.60 = 9,292.80 : x
  2. Step 2: Convert to fraction form
    11,366.40/15,705.60 = 9,292.80/x
  3. Step 3: Cross multiply
    11,366.40x = 15,705.60 × 9,292.80
  4. Step 4: Simplify right side
    11,366.40x = 145,948,999.68
  5. Step 5: Solve for x
    x = 145,948,999.68/11,366.40
  6. Step 6: Final answer
    x = 12,840.39

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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.