Home / 11,627.84-16,019.40-8,039.36

Finding the Fourth Proportional to 11,627.84, 16,019.40 and 8,039.36

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Solution

The fourth proportional to 11,627.84, 16,019.40 and 8,039.36 is: 11,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,627.84 : 16,019.40 = 8,039.36 : x
  2. Step 2: Convert to fraction form
    11,627.84/16,019.40 = 8,039.36/x
  3. Step 3: Cross multiply
    11,627.84x = 16,019.40 × 8,039.36
  4. Step 4: Simplify right side
    11,627.84x = 128,785,723.58
  5. Step 5: Solve for x
    x = 128,785,723.58/11,627.84
  6. Step 6: Final answer
    x = 11,075.64

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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.