Home / 13,427.04-20,143.72-13,203.88

Finding the Fourth Proportional to 13,427.04, 20,143.72 and 13,203.88

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Solution

The fourth proportional to 13,427.04, 20,143.72 and 13,203.88 is: 19,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.04 : 20,143.72 = 13,203.88 : x
  2. Step 2: Convert to fraction form
    13,427.04/20,143.72 = 13,203.88/x
  3. Step 3: Cross multiply
    13,427.04x = 20,143.72 × 13,203.88
  4. Step 4: Simplify right side
    13,427.04x = 265,975,261.63
  5. Step 5: Solve for x
    x = 265,975,261.63/13,427.04
  6. Step 6: Final answer
    x = 19,808.93

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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.