Home / 19,973.69-27,558.77-12,210.55

Finding the Fourth Proportional to 19,973.69, 27,558.77 and 12,210.55

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Solution

The fourth proportional to 19,973.69, 27,558.77 and 12,210.55 is: 16,847.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,973.69 : 27,558.77 = 12,210.55 : x
  2. Step 2: Convert to fraction form
    19,973.69/27,558.77 = 12,210.55/x
  3. Step 3: Cross multiply
    19,973.69x = 27,558.77 × 12,210.55
  4. Step 4: Simplify right side
    19,973.69x = 336,507,540.18
  5. Step 5: Solve for x
    x = 336,507,540.18/19,973.69
  6. Step 6: Final answer
    x = 16,847.54

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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.