Home / 11,121.49-16,681.65-2,801.50

Finding the Fourth Proportional to 11,121.49, 16,681.65 and 2,801.50

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Solution

The fourth proportional to 11,121.49, 16,681.65 and 2,801.50 is: 4,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.49 : 16,681.65 = 2,801.50 : x
  2. Step 2: Convert to fraction form
    11,121.49/16,681.65 = 2,801.50/x
  3. Step 3: Cross multiply
    11,121.49x = 16,681.65 × 2,801.50
  4. Step 4: Simplify right side
    11,121.49x = 46,733,642.48
  5. Step 5: Solve for x
    x = 46,733,642.48/11,121.49
  6. Step 6: Final answer
    x = 4,202.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.