Home / 12,258.19-18,389.28-11,018.41

Finding the Fourth Proportional to 12,258.19, 18,389.28 and 11,018.41

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Solution

The fourth proportional to 12,258.19, 18,389.28 and 11,018.41 is: 16,529.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.19 : 18,389.28 = 11,018.41 : x
  2. Step 2: Convert to fraction form
    12,258.19/18,389.28 = 11,018.41/x
  3. Step 3: Cross multiply
    12,258.19x = 18,389.28 × 11,018.41
  4. Step 4: Simplify right side
    12,258.19x = 202,620,626.64
  5. Step 5: Solve for x
    x = 202,620,626.64/12,258.19
  6. Step 6: Final answer
    x = 16,529.41

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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.