Home / 11,360.50-15,625.45-9,117.46

Finding the Fourth Proportional to 11,360.50, 15,625.45 and 9,117.46

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Solution

The fourth proportional to 11,360.50, 15,625.45 and 9,117.46 is: 12,540.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,360.50 : 15,625.45 = 9,117.46 : x
  2. Step 2: Convert to fraction form
    11,360.50/15,625.45 = 9,117.46/x
  3. Step 3: Cross multiply
    11,360.50x = 15,625.45 × 9,117.46
  4. Step 4: Simplify right side
    11,360.50x = 142,464,415.36
  5. Step 5: Solve for x
    x = 142,464,415.36/11,360.50
  6. Step 6: Final answer
    x = 12,540.33

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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.