Home / 18,685.58-28,044.77-10,374.98

Finding the Fourth Proportional to 18,685.58, 28,044.77 and 10,374.98

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Solution

The fourth proportional to 18,685.58, 28,044.77 and 10,374.98 is: 15,571.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.58 : 28,044.77 = 10,374.98 : x
  2. Step 2: Convert to fraction form
    18,685.58/28,044.77 = 10,374.98/x
  3. Step 3: Cross multiply
    18,685.58x = 28,044.77 × 10,374.98
  4. Step 4: Simplify right side
    18,685.58x = 290,963,735.76
  5. Step 5: Solve for x
    x = 290,963,735.76/18,685.58
  6. Step 6: Final answer
    x = 15,571.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.