Home / 12,881.19-17,772.98-7,500.33

Finding the Fourth Proportional to 12,881.19, 17,772.98 and 7,500.33

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Solution

The fourth proportional to 12,881.19, 17,772.98 and 7,500.33 is: 10,348.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,881.19 : 17,772.98 = 7,500.33 : x
  2. Step 2: Convert to fraction form
    12,881.19/17,772.98 = 7,500.33/x
  3. Step 3: Cross multiply
    12,881.19x = 17,772.98 × 7,500.33
  4. Step 4: Simplify right side
    12,881.19x = 133,303,177.58
  5. Step 5: Solve for x
    x = 133,303,177.58/12,881.19
  6. Step 6: Final answer
    x = 10,348.67

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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.