Home / 13,000.45-19,505.19-4,235.30

Finding the Fourth Proportional to 13,000.45, 19,505.19 and 4,235.30

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Solution

The fourth proportional to 13,000.45, 19,505.19 and 4,235.30 is: 6,354.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,000.45 : 19,505.19 = 4,235.30 : x
  2. Step 2: Convert to fraction form
    13,000.45/19,505.19 = 4,235.30/x
  3. Step 3: Cross multiply
    13,000.45x = 19,505.19 × 4,235.30
  4. Step 4: Simplify right side
    13,000.45x = 82,610,331.21
  5. Step 5: Solve for x
    x = 82,610,331.21/13,000.45
  6. Step 6: Final answer
    x = 6,354.42

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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.