Home / 15,804.72-23,709.24-5,415.12

Finding the Fourth Proportional to 15,804.72, 23,709.24 and 5,415.12

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Solution

The fourth proportional to 15,804.72, 23,709.24 and 5,415.12 is: 8,123.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,804.72 : 23,709.24 = 5,415.12 : x
  2. Step 2: Convert to fraction form
    15,804.72/23,709.24 = 5,415.12/x
  3. Step 3: Cross multiply
    15,804.72x = 23,709.24 × 5,415.12
  4. Step 4: Simplify right side
    15,804.72x = 128,388,379.71
  5. Step 5: Solve for x
    x = 128,388,379.71/15,804.72
  6. Step 6: Final answer
    x = 8,123.42

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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.