Home / 12,869.06-17,759.60-7,203.67

Finding the Fourth Proportional to 12,869.06, 17,759.60 and 7,203.67

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Solution

The fourth proportional to 12,869.06, 17,759.60 and 7,203.67 is: 9,941.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.06 : 17,759.60 = 7,203.67 : x
  2. Step 2: Convert to fraction form
    12,869.06/17,759.60 = 7,203.67/x
  3. Step 3: Cross multiply
    12,869.06x = 17,759.60 × 7,203.67
  4. Step 4: Simplify right side
    12,869.06x = 127,934,284.85
  5. Step 5: Solve for x
    x = 127,934,284.85/12,869.06
  6. Step 6: Final answer
    x = 9,941.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.