Home / 13,627.86-18,802.22-7,958.51

Finding the Fourth Proportional to 13,627.86, 18,802.22 and 7,958.51

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Solution

The fourth proportional to 13,627.86, 18,802.22 and 7,958.51 is: 10,980.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,627.86 : 18,802.22 = 7,958.51 : x
  2. Step 2: Convert to fraction form
    13,627.86/18,802.22 = 7,958.51/x
  3. Step 3: Cross multiply
    13,627.86x = 18,802.22 × 7,958.51
  4. Step 4: Simplify right side
    13,627.86x = 149,637,522.09
  5. Step 5: Solve for x
    x = 149,637,522.09/13,627.86
  6. Step 6: Final answer
    x = 10,980.27

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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.