Home / 13,160.09-18,160.93-7,110.33

Finding the Fourth Proportional to 13,160.09, 18,160.93 and 7,110.33

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Solution

The fourth proportional to 13,160.09, 18,160.93 and 7,110.33 is: 9,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.09 : 18,160.93 = 7,110.33 : x
  2. Step 2: Convert to fraction form
    13,160.09/18,160.93 = 7,110.33/x
  3. Step 3: Cross multiply
    13,160.09x = 18,160.93 × 7,110.33
  4. Step 4: Simplify right side
    13,160.09x = 129,130,205.41
  5. Step 5: Solve for x
    x = 129,130,205.41/13,160.09
  6. Step 6: Final answer
    x = 9,812.26

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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.