Home / 13,777.08-18,984.96-9,578.04

Finding the Fourth Proportional to 13,777.08, 18,984.96 and 9,578.04

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Solution

The fourth proportional to 13,777.08, 18,984.96 and 9,578.04 is: 13,198.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,777.08 : 18,984.96 = 9,578.04 : x
  2. Step 2: Convert to fraction form
    13,777.08/18,984.96 = 9,578.04/x
  3. Step 3: Cross multiply
    13,777.08x = 18,984.96 × 9,578.04
  4. Step 4: Simplify right side
    13,777.08x = 181,838,706.28
  5. Step 5: Solve for x
    x = 181,838,706.28/13,777.08
  6. Step 6: Final answer
    x = 13,198.64

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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.