Home / 15,653.07-21,597.72-8,936.55

Finding the Fourth Proportional to 15,653.07, 21,597.72 and 8,936.55

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Solution

The fourth proportional to 15,653.07, 21,597.72 and 8,936.55 is: 12,330.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.07 : 21,597.72 = 8,936.55 : x
  2. Step 2: Convert to fraction form
    15,653.07/21,597.72 = 8,936.55/x
  3. Step 3: Cross multiply
    15,653.07x = 21,597.72 × 8,936.55
  4. Step 4: Simplify right side
    15,653.07x = 193,009,104.67
  5. Step 5: Solve for x
    x = 193,009,104.67/15,653.07
  6. Step 6: Final answer
    x = 12,330.43

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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.