Home / 12,857.25-19,258.53-7,586.58

Finding the Fourth Proportional to 12,857.25, 19,258.53 and 7,586.58

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Solution

The fourth proportional to 12,857.25, 19,258.53 and 7,586.58 is: 11,363.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857.25 : 19,258.53 = 7,586.58 : x
  2. Step 2: Convert to fraction form
    12,857.25/19,258.53 = 7,586.58/x
  3. Step 3: Cross multiply
    12,857.25x = 19,258.53 × 7,586.58
  4. Step 4: Simplify right side
    12,857.25x = 146,106,378.53
  5. Step 5: Solve for x
    x = 146,106,378.53/12,857.25
  6. Step 6: Final answer
    x = 11,363.73

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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.