Home / 13,118.52-19,668.06-7,923.18

Finding the Fourth Proportional to 13,118.52, 19,668.06 and 7,923.18

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Solution

The fourth proportional to 13,118.52, 19,668.06 and 7,923.18 is: 11,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.52 : 19,668.06 = 7,923.18 : x
  2. Step 2: Convert to fraction form
    13,118.52/19,668.06 = 7,923.18/x
  3. Step 3: Cross multiply
    13,118.52x = 19,668.06 × 7,923.18
  4. Step 4: Simplify right side
    13,118.52x = 155,833,579.63
  5. Step 5: Solve for x
    x = 155,833,579.63/13,118.52
  6. Step 6: Final answer
    x = 11,878.90

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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.