Home / 13,771.55-19,003.66-7,804.15

Finding the Fourth Proportional to 13,771.55, 19,003.66 and 7,804.15

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Solution

The fourth proportional to 13,771.55, 19,003.66 and 7,804.15 is: 10,769.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.55 : 19,003.66 = 7,804.15 : x
  2. Step 2: Convert to fraction form
    13,771.55/19,003.66 = 7,804.15/x
  3. Step 3: Cross multiply
    13,771.55x = 19,003.66 × 7,804.15
  4. Step 4: Simplify right side
    13,771.55x = 148,307,346.17
  5. Step 5: Solve for x
    x = 148,307,346.17/13,771.55
  6. Step 6: Final answer
    x = 10,769.11

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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.