Home / 12,725.58-17,567.93-9,886.56

Finding the Fourth Proportional to 12,725.58, 17,567.93 and 9,886.56

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Solution

The fourth proportional to 12,725.58, 17,567.93 and 9,886.56 is: 13,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,725.58 : 17,567.93 = 9,886.56 : x
  2. Step 2: Convert to fraction form
    12,725.58/17,567.93 = 9,886.56/x
  3. Step 3: Cross multiply
    12,725.58x = 17,567.93 × 9,886.56
  4. Step 4: Simplify right side
    12,725.58x = 173,686,394.02
  5. Step 5: Solve for x
    x = 173,686,394.02/12,725.58
  6. Step 6: Final answer
    x = 13,648.60

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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.