Home / 19,386.33-29,082.74-7,699.65

Finding the Fourth Proportional to 19,386.33, 29,082.74 and 7,699.65

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Solution

The fourth proportional to 19,386.33, 29,082.74 and 7,699.65 is: 11,550.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.33 : 29,082.74 = 7,699.65 : x
  2. Step 2: Convert to fraction form
    19,386.33/29,082.74 = 7,699.65/x
  3. Step 3: Cross multiply
    19,386.33x = 29,082.74 × 7,699.65
  4. Step 4: Simplify right side
    19,386.33x = 223,926,880.54
  5. Step 5: Solve for x
    x = 223,926,880.54/19,386.33
  6. Step 6: Final answer
    x = 11,550.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.