Home / 13,973.76-20,857.59-12,804.66

Finding the Fourth Proportional to 13,973.76, 20,857.59 and 12,804.66

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Solution

The fourth proportional to 13,973.76, 20,857.59 and 12,804.66 is: 19,112.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,973.76 : 20,857.59 = 12,804.66 : x
  2. Step 2: Convert to fraction form
    13,973.76/20,857.59 = 12,804.66/x
  3. Step 3: Cross multiply
    13,973.76x = 20,857.59 × 12,804.66
  4. Step 4: Simplify right side
    13,973.76x = 267,074,348.37
  5. Step 5: Solve for x
    x = 267,074,348.37/13,973.76
  6. Step 6: Final answer
    x = 19,112.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.