Home / 13,006.38-19,509.48-5,215.08

Finding the Fourth Proportional to 13,006.38, 19,509.48 and 5,215.08

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Solution

The fourth proportional to 13,006.38, 19,509.48 and 5,215.08 is: 7,822.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,006.38 : 19,509.48 = 5,215.08 : x
  2. Step 2: Convert to fraction form
    13,006.38/19,509.48 = 5,215.08/x
  3. Step 3: Cross multiply
    13,006.38x = 19,509.48 × 5,215.08
  4. Step 4: Simplify right side
    13,006.38x = 101,743,498.96
  5. Step 5: Solve for x
    x = 101,743,498.96/13,006.38
  6. Step 6: Final answer
    x = 7,822.58

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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.