Home / 19,719.78-29,563.32-7,866.24

Finding the Fourth Proportional to 19,719.78, 29,563.32 and 7,866.24

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Solution

The fourth proportional to 19,719.78, 29,563.32 and 7,866.24 is: 11,792.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.78 : 29,563.32 = 7,866.24 : x
  2. Step 2: Convert to fraction form
    19,719.78/29,563.32 = 7,866.24/x
  3. Step 3: Cross multiply
    19,719.78x = 29,563.32 × 7,866.24
  4. Step 4: Simplify right side
    19,719.78x = 232,552,170.32
  5. Step 5: Solve for x
    x = 232,552,170.32/19,719.78
  6. Step 6: Final answer
    x = 11,792.84

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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.