Home / 13,261.41-19,891.06-7,711.22

Finding the Fourth Proportional to 13,261.41, 19,891.06 and 7,711.22

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Solution

The fourth proportional to 13,261.41, 19,891.06 and 7,711.22 is: 11,566.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.41 : 19,891.06 = 7,711.22 : x
  2. Step 2: Convert to fraction form
    13,261.41/19,891.06 = 7,711.22/x
  3. Step 3: Cross multiply
    13,261.41x = 19,891.06 × 7,711.22
  4. Step 4: Simplify right side
    13,261.41x = 153,384,220.96
  5. Step 5: Solve for x
    x = 153,384,220.96/13,261.41
  6. Step 6: Final answer
    x = 11,566.21

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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.