Home / 13,104.79-18,101.91-9,708.69

Finding the Fourth Proportional to 13,104.79, 18,101.91 and 9,708.69

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Solution

The fourth proportional to 13,104.79, 18,101.91 and 9,708.69 is: 13,410.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.79 : 18,101.91 = 9,708.69 : x
  2. Step 2: Convert to fraction form
    13,104.79/18,101.91 = 9,708.69/x
  3. Step 3: Cross multiply
    13,104.79x = 18,101.91 × 9,708.69
  4. Step 4: Simplify right side
    13,104.79x = 175,745,936.89
  5. Step 5: Solve for x
    x = 175,745,936.89/13,104.79
  6. Step 6: Final answer
    x = 13,410.82

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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.