Home / 15,410.82-21,261.72-12,573.29

Finding the Fourth Proportional to 15,410.82, 21,261.72 and 12,573.29

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Solution

The fourth proportional to 15,410.82, 21,261.72 and 12,573.29 is: 17,346.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,410.82 : 21,261.72 = 12,573.29 : x
  2. Step 2: Convert to fraction form
    15,410.82/21,261.72 = 12,573.29/x
  3. Step 3: Cross multiply
    15,410.82x = 21,261.72 × 12,573.29
  4. Step 4: Simplify right side
    15,410.82x = 267,329,871.76
  5. Step 5: Solve for x
    x = 267,329,871.76/15,410.82
  6. Step 6: Final answer
    x = 17,346.89

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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.