Home / 13,090.76-19,628.69-8,935.79

Finding the Fourth Proportional to 13,090.76, 19,628.69 and 8,935.79

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Solution

The fourth proportional to 13,090.76, 19,628.69 and 8,935.79 is: 13,398.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.76 : 19,628.69 = 8,935.79 : x
  2. Step 2: Convert to fraction form
    13,090.76/19,628.69 = 8,935.79/x
  3. Step 3: Cross multiply
    13,090.76x = 19,628.69 × 8,935.79
  4. Step 4: Simplify right side
    13,090.76x = 175,397,708.99
  5. Step 5: Solve for x
    x = 175,397,708.99/13,090.76
  6. Step 6: Final answer
    x = 13,398.59

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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.