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Finding the Fourth Proportional to 12,675.16, 19,012.74 and 5,277.43

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Solution

The fourth proportional to 12,675.16, 19,012.74 and 5,277.43 is: 7,916.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,675.16 : 19,012.74 = 5,277.43 : x
  2. Step 2: Convert to fraction form
    12,675.16/19,012.74 = 5,277.43/x
  3. Step 3: Cross multiply
    12,675.16x = 19,012.74 × 5,277.43
  4. Step 4: Simplify right side
    12,675.16x = 100,338,404.46
  5. Step 5: Solve for x
    x = 100,338,404.46/12,675.16
  6. Step 6: Final answer
    x = 7,916.15

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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.