Home / 13,795.67-19,034.70-8,130.65

Finding the Fourth Proportional to 13,795.67, 19,034.70 and 8,130.65

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Solution

The fourth proportional to 13,795.67, 19,034.70 and 8,130.65 is: 11,218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.67 : 19,034.70 = 8,130.65 : x
  2. Step 2: Convert to fraction form
    13,795.67/19,034.70 = 8,130.65/x
  3. Step 3: Cross multiply
    13,795.67x = 19,034.70 × 8,130.65
  4. Step 4: Simplify right side
    13,795.67x = 154,764,483.56
  5. Step 5: Solve for x
    x = 154,764,483.56/13,795.67
  6. Step 6: Final answer
    x = 11,218.34

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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.