Home / 13,702.73-18,900.79-9,675.45

Finding the Fourth Proportional to 13,702.73, 18,900.79 and 9,675.45

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Solution

The fourth proportional to 13,702.73, 18,900.79 and 9,675.45 is: 13,345.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702.73 : 18,900.79 = 9,675.45 : x
  2. Step 2: Convert to fraction form
    13,702.73/18,900.79 = 9,675.45/x
  3. Step 3: Cross multiply
    13,702.73x = 18,900.79 × 9,675.45
  4. Step 4: Simplify right side
    13,702.73x = 182,873,624.42
  5. Step 5: Solve for x
    x = 182,873,624.42/13,702.73
  6. Step 6: Final answer
    x = 13,345.79

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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.