Home / 13,071.92-18,039.33-7,103.64

Finding the Fourth Proportional to 13,071.92, 18,039.33 and 7,103.64

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Solution

The fourth proportional to 13,071.92, 18,039.33 and 7,103.64 is: 9,803.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,071.92 : 18,039.33 = 7,103.64 : x
  2. Step 2: Convert to fraction form
    13,071.92/18,039.33 = 7,103.64/x
  3. Step 3: Cross multiply
    13,071.92x = 18,039.33 × 7,103.64
  4. Step 4: Simplify right side
    13,071.92x = 128,144,906.16
  5. Step 5: Solve for x
    x = 128,144,906.16/13,071.92
  6. Step 6: Final answer
    x = 9,803.07

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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.