Home / 11,316.70-15,571.14-9,292.66

Finding the Fourth Proportional to 11,316.70, 15,571.14 and 9,292.66

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Solution

The fourth proportional to 11,316.70, 15,571.14 and 9,292.66 is: 12,786.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.70 : 15,571.14 = 9,292.66 : x
  2. Step 2: Convert to fraction form
    11,316.70/15,571.14 = 9,292.66/x
  3. Step 3: Cross multiply
    11,316.70x = 15,571.14 × 9,292.66
  4. Step 4: Simplify right side
    11,316.70x = 144,697,309.83
  5. Step 5: Solve for x
    x = 144,697,309.83/11,316.70
  6. Step 6: Final answer
    x = 12,786.18

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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.