Home / 15,421.36-23,122.32-8,500.72

Finding the Fourth Proportional to 15,421.36, 23,122.32 and 8,500.72

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Solution

The fourth proportional to 15,421.36, 23,122.32 and 8,500.72 is: 12,745.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421.36 : 23,122.32 = 8,500.72 : x
  2. Step 2: Convert to fraction form
    15,421.36/23,122.32 = 8,500.72/x
  3. Step 3: Cross multiply
    15,421.36x = 23,122.32 × 8,500.72
  4. Step 4: Simplify right side
    15,421.36x = 196,556,368.07
  5. Step 5: Solve for x
    x = 196,556,368.07/15,421.36
  6. Step 6: Final answer
    x = 12,745.72

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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.