Home / 11,365.35-15,685.40-6,653.58

Finding the Fourth Proportional to 11,365.35, 15,685.40 and 6,653.58

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Solution

The fourth proportional to 11,365.35, 15,685.40 and 6,653.58 is: 9,182.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,365.35 : 15,685.40 = 6,653.58 : x
  2. Step 2: Convert to fraction form
    11,365.35/15,685.40 = 6,653.58/x
  3. Step 3: Cross multiply
    11,365.35x = 15,685.40 × 6,653.58
  4. Step 4: Simplify right side
    11,365.35x = 104,364,063.73
  5. Step 5: Solve for x
    x = 104,364,063.73/11,365.35
  6. Step 6: Final answer
    x = 9,182.65

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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.