Home / 18,828.50-28,212.80-9,943.52

Finding the Fourth Proportional to 18,828.50, 28,212.80 and 9,943.52

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Solution

The fourth proportional to 18,828.50, 28,212.80 and 9,943.52 is: 14,899.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.50 : 28,212.80 = 9,943.52 : x
  2. Step 2: Convert to fraction form
    18,828.50/28,212.80 = 9,943.52/x
  3. Step 3: Cross multiply
    18,828.50x = 28,212.80 × 9,943.52
  4. Step 4: Simplify right side
    18,828.50x = 280,534,350.27
  5. Step 5: Solve for x
    x = 280,534,350.27/18,828.50
  6. Step 6: Final answer
    x = 14,899.46

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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.