Home / 9,858.36-13,599.78-6,672.78

Finding the Fourth Proportional to 9,858.36, 13,599.78 and 6,672.78

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Solution

The fourth proportional to 9,858.36, 13,599.78 and 6,672.78 is: 9,205.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,858.36 : 13,599.78 = 6,672.78 : x
  2. Step 2: Convert to fraction form
    9,858.36/13,599.78 = 6,672.78/x
  3. Step 3: Cross multiply
    9,858.36x = 13,599.78 × 6,672.78
  4. Step 4: Simplify right side
    9,858.36x = 90,748,339.99
  5. Step 5: Solve for x
    x = 90,748,339.99/9,858.36
  6. Step 6: Final answer
    x = 9,205.22

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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.