Home / 19,172.19-28,775.44-9,818.60

Finding the Fourth Proportional to 19,172.19, 28,775.44 and 9,818.60

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Solution

The fourth proportional to 19,172.19, 28,775.44 and 9,818.60 is: 14,736.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.19 : 28,775.44 = 9,818.60 : x
  2. Step 2: Convert to fraction form
    19,172.19/28,775.44 = 9,818.60/x
  3. Step 3: Cross multiply
    19,172.19x = 28,775.44 × 9,818.60
  4. Step 4: Simplify right side
    19,172.19x = 282,534,535.18
  5. Step 5: Solve for x
    x = 282,534,535.18/19,172.19
  6. Step 6: Final answer
    x = 14,736.69

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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.