Home / 13,110.84-19,629.60-7,085.32

Finding the Fourth Proportional to 13,110.84, 19,629.60 and 7,085.32

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Solution

The fourth proportional to 13,110.84, 19,629.60 and 7,085.32 is: 10,608.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.84 : 19,629.60 = 7,085.32 : x
  2. Step 2: Convert to fraction form
    13,110.84/19,629.60 = 7,085.32/x
  3. Step 3: Cross multiply
    13,110.84x = 19,629.60 × 7,085.32
  4. Step 4: Simplify right side
    13,110.84x = 139,081,997.47
  5. Step 5: Solve for x
    x = 139,081,997.47/13,110.84
  6. Step 6: Final answer
    x = 10,608.17

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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.