Home / 13,004.40-19,509.68-4,239.32

Finding the Fourth Proportional to 13,004.40, 19,509.68 and 4,239.32

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Solution

The fourth proportional to 13,004.40, 19,509.68 and 4,239.32 is: 6,359.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,004.40 : 19,509.68 = 4,239.32 : x
  2. Step 2: Convert to fraction form
    13,004.40/19,509.68 = 4,239.32/x
  3. Step 3: Cross multiply
    13,004.40x = 19,509.68 × 4,239.32
  4. Step 4: Simplify right side
    13,004.40x = 82,707,776.62
  5. Step 5: Solve for x
    x = 82,707,776.62/13,004.40
  6. Step 6: Final answer
    x = 6,359.98

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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.