Home / 13,940.85-19,239.51-7,973.67

Finding the Fourth Proportional to 13,940.85, 19,239.51 and 7,973.67

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Solution

The fourth proportional to 13,940.85, 19,239.51 and 7,973.67 is: 11,004.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.85 : 19,239.51 = 7,973.67 : x
  2. Step 2: Convert to fraction form
    13,940.85/19,239.51 = 7,973.67/x
  3. Step 3: Cross multiply
    13,940.85x = 19,239.51 × 7,973.67
  4. Step 4: Simplify right side
    13,940.85x = 153,409,503.70
  5. Step 5: Solve for x
    x = 153,409,503.70/13,940.85
  6. Step 6: Final answer
    x = 11,004.31

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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.