Home / 13,498.36-18,628.20-7,832.68

Finding the Fourth Proportional to 13,498.36, 18,628.20 and 7,832.68

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Solution

The fourth proportional to 13,498.36, 18,628.20 and 7,832.68 is: 10,809.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,498.36 : 18,628.20 = 7,832.68 : x
  2. Step 2: Convert to fraction form
    13,498.36/18,628.20 = 7,832.68/x
  3. Step 3: Cross multiply
    13,498.36x = 18,628.20 × 7,832.68
  4. Step 4: Simplify right side
    13,498.36x = 145,908,729.58
  5. Step 5: Solve for x
    x = 145,908,729.58/13,498.36
  6. Step 6: Final answer
    x = 10,809.37

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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.