Home / 11,112.50-15,334.62-6,075.79

Finding the Fourth Proportional to 11,112.50, 15,334.62 and 6,075.79

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Solution

The fourth proportional to 11,112.50, 15,334.62 and 6,075.79 is: 8,384.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.50 : 15,334.62 = 6,075.79 : x
  2. Step 2: Convert to fraction form
    11,112.50/15,334.62 = 6,075.79/x
  3. Step 3: Cross multiply
    11,112.50x = 15,334.62 × 6,075.79
  4. Step 4: Simplify right side
    11,112.50x = 93,169,930.85
  5. Step 5: Solve for x
    x = 93,169,930.85/11,112.50
  6. Step 6: Final answer
    x = 8,384.25

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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.