Home / 19,114.78-28,647.87-10,357.06

Finding the Fourth Proportional to 19,114.78, 28,647.87 and 10,357.06

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Solution

The fourth proportional to 19,114.78, 28,647.87 and 10,357.06 is: 15,522.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,114.78 : 28,647.87 = 10,357.06 : x
  2. Step 2: Convert to fraction form
    19,114.78/28,647.87 = 10,357.06/x
  3. Step 3: Cross multiply
    19,114.78x = 28,647.87 × 10,357.06
  4. Step 4: Simplify right side
    19,114.78x = 296,707,708.46
  5. Step 5: Solve for x
    x = 296,707,708.46/19,114.78
  6. Step 6: Final answer
    x = 15,522.42

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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.