Home / 12,792.36-19,158.80-12,348.92

Finding the Fourth Proportional to 12,792.36, 19,158.80 and 12,348.92

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Solution

The fourth proportional to 12,792.36, 19,158.80 and 12,348.92 is: 18,494.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.36 : 19,158.80 = 12,348.92 : x
  2. Step 2: Convert to fraction form
    12,792.36/19,158.80 = 12,348.92/x
  3. Step 3: Cross multiply
    12,792.36x = 19,158.80 × 12,348.92
  4. Step 4: Simplify right side
    12,792.36x = 236,590,488.50
  5. Step 5: Solve for x
    x = 236,590,488.50/12,792.36
  6. Step 6: Final answer
    x = 18,494.67

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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.