Home / 13,133.52-19,717.47-7,806.47

Finding the Fourth Proportional to 13,133.52, 19,717.47 and 7,806.47

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Solution

The fourth proportional to 13,133.52, 19,717.47 and 7,806.47 is: 11,719.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.52 : 19,717.47 = 7,806.47 : x
  2. Step 2: Convert to fraction form
    13,133.52/19,717.47 = 7,806.47/x
  3. Step 3: Cross multiply
    13,133.52x = 19,717.47 × 7,806.47
  4. Step 4: Simplify right side
    13,133.52x = 153,923,739.44
  5. Step 5: Solve for x
    x = 153,923,739.44/13,133.52
  6. Step 6: Final answer
    x = 11,719.92

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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.