Home / 19,000.72-28,499.36-8,471.24

Finding the Fourth Proportional to 19,000.72, 28,499.36 and 8,471.24

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Solution

The fourth proportional to 19,000.72, 28,499.36 and 8,471.24 is: 12,706.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.72 : 28,499.36 = 8,471.24 : x
  2. Step 2: Convert to fraction form
    19,000.72/28,499.36 = 8,471.24/x
  3. Step 3: Cross multiply
    19,000.72x = 28,499.36 × 8,471.24
  4. Step 4: Simplify right side
    19,000.72x = 241,424,918.41
  5. Step 5: Solve for x
    x = 241,424,918.41/19,000.72
  6. Step 6: Final answer
    x = 12,706.09

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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.