Home / 12,902.07-19,353.09-8,518.50

Finding the Fourth Proportional to 12,902.07, 19,353.09 and 8,518.50

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Solution

The fourth proportional to 12,902.07, 19,353.09 and 8,518.50 is: 12,777.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,902.07 : 19,353.09 = 8,518.50 : x
  2. Step 2: Convert to fraction form
    12,902.07/19,353.09 = 8,518.50/x
  3. Step 3: Cross multiply
    12,902.07x = 19,353.09 × 8,518.50
  4. Step 4: Simplify right side
    12,902.07x = 164,859,297.17
  5. Step 5: Solve for x
    x = 164,859,297.17/12,902.07
  6. Step 6: Final answer
    x = 12,777.74

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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.