Home / 15,645.06-21,584.79-8,925.84

Finding the Fourth Proportional to 15,645.06, 21,584.79 and 8,925.84

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Solution

The fourth proportional to 15,645.06, 21,584.79 and 8,925.84 is: 12,314.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,645.06 : 21,584.79 = 8,925.84 : x
  2. Step 2: Convert to fraction form
    15,645.06/21,584.79 = 8,925.84/x
  3. Step 3: Cross multiply
    15,645.06x = 21,584.79 × 8,925.84
  4. Step 4: Simplify right side
    15,645.06x = 192,662,381.97
  5. Step 5: Solve for x
    x = 192,662,381.97/15,645.06
  6. Step 6: Final answer
    x = 12,314.58

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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.