Home / 13,494.63-18,622.36-7,830.33

Finding the Fourth Proportional to 13,494.63, 18,622.36 and 7,830.33

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Solution

The fourth proportional to 13,494.63, 18,622.36 and 7,830.33 is: 10,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,494.63 : 18,622.36 = 7,830.33 : x
  2. Step 2: Convert to fraction form
    13,494.63/18,622.36 = 7,830.33/x
  3. Step 3: Cross multiply
    13,494.63x = 18,622.36 × 7,830.33
  4. Step 4: Simplify right side
    13,494.63x = 145,819,224.18
  5. Step 5: Solve for x
    x = 145,819,224.18/13,494.63
  6. Step 6: Final answer
    x = 10,805.72

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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.