Home / 13,317.36-19,955.31-7,756.98

Finding the Fourth Proportional to 13,317.36, 19,955.31 and 7,756.98

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Solution

The fourth proportional to 13,317.36, 19,955.31 and 7,756.98 is: 11,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.36 : 19,955.31 = 7,756.98 : x
  2. Step 2: Convert to fraction form
    13,317.36/19,955.31 = 7,756.98/x
  3. Step 3: Cross multiply
    13,317.36x = 19,955.31 × 7,756.98
  4. Step 4: Simplify right side
    13,317.36x = 154,792,940.56
  5. Step 5: Solve for x
    x = 154,792,940.56/13,317.36
  6. Step 6: Final answer
    x = 11,623.40

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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.