Home / 12,900.26-19,394.13-10,300.97

Finding the Fourth Proportional to 12,900.26, 19,394.13 and 10,300.97

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Solution

The fourth proportional to 12,900.26, 19,394.13 and 10,300.97 is: 15,486.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900.26 : 19,394.13 = 10,300.97 : x
  2. Step 2: Convert to fraction form
    12,900.26/19,394.13 = 10,300.97/x
  3. Step 3: Cross multiply
    12,900.26x = 19,394.13 × 10,300.97
  4. Step 4: Simplify right side
    12,900.26x = 199,778,438.42
  5. Step 5: Solve for x
    x = 199,778,438.42/12,900.26
  6. Step 6: Final answer
    x = 15,486.39

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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.