Home / 13,812.75-19,055.55-9,334.89

Finding the Fourth Proportional to 13,812.75, 19,055.55 and 9,334.89

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Solution

The fourth proportional to 13,812.75, 19,055.55 and 9,334.89 is: 12,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.75 : 19,055.55 = 9,334.89 : x
  2. Step 2: Convert to fraction form
    13,812.75/19,055.55 = 9,334.89/x
  3. Step 3: Cross multiply
    13,812.75x = 19,055.55 × 9,334.89
  4. Step 4: Simplify right side
    13,812.75x = 177,881,463.14
  5. Step 5: Solve for x
    x = 177,881,463.14/13,812.75
  6. Step 6: Final answer
    x = 12,878.06

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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.