Home / 13,307.26-18,364.96-7,643.66

Finding the Fourth Proportional to 13,307.26, 18,364.96 and 7,643.66

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Solution

The fourth proportional to 13,307.26, 18,364.96 and 7,643.66 is: 10,548.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.26 : 18,364.96 = 7,643.66 : x
  2. Step 2: Convert to fraction form
    13,307.26/18,364.96 = 7,643.66/x
  3. Step 3: Cross multiply
    13,307.26x = 18,364.96 × 7,643.66
  4. Step 4: Simplify right side
    13,307.26x = 140,375,510.15
  5. Step 5: Solve for x
    x = 140,375,510.15/13,307.26
  6. Step 6: Final answer
    x = 10,548.79

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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.