Home / 13,228.90-19,836.59-6,992.26

Finding the Fourth Proportional to 13,228.90, 19,836.59 and 6,992.26

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Solution

The fourth proportional to 13,228.90, 19,836.59 and 6,992.26 is: 10,484.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228.90 : 19,836.59 = 6,992.26 : x
  2. Step 2: Convert to fraction form
    13,228.90/19,836.59 = 6,992.26/x
  3. Step 3: Cross multiply
    13,228.90x = 19,836.59 × 6,992.26
  4. Step 4: Simplify right side
    13,228.90x = 138,702,594.79
  5. Step 5: Solve for x
    x = 138,702,594.79/13,228.90
  6. Step 6: Final answer
    x = 10,484.82

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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.