Home / 12,852.03-19,269.95-7,220.78

Finding the Fourth Proportional to 12,852.03, 19,269.95 and 7,220.78

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Solution

The fourth proportional to 12,852.03, 19,269.95 and 7,220.78 is: 10,826.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.03 : 19,269.95 = 7,220.78 : x
  2. Step 2: Convert to fraction form
    12,852.03/19,269.95 = 7,220.78/x
  3. Step 3: Cross multiply
    12,852.03x = 19,269.95 × 7,220.78
  4. Step 4: Simplify right side
    12,852.03x = 139,143,937.11
  5. Step 5: Solve for x
    x = 139,143,937.11/12,852.03
  6. Step 6: Final answer
    x = 10,826.61

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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.