Home / 12,869.62-19,307.27-7,325.58

Finding the Fourth Proportional to 12,869.62, 19,307.27 and 7,325.58

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Solution

The fourth proportional to 12,869.62, 19,307.27 and 7,325.58 is: 10,989.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.62 : 19,307.27 = 7,325.58 : x
  2. Step 2: Convert to fraction form
    12,869.62/19,307.27 = 7,325.58/x
  3. Step 3: Cross multiply
    12,869.62x = 19,307.27 × 7,325.58
  4. Step 4: Simplify right side
    12,869.62x = 141,436,950.97
  5. Step 5: Solve for x
    x = 141,436,950.97/12,869.62
  6. Step 6: Final answer
    x = 10,989.99

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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.