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Finding the Fourth Proportional to 15,797.26, 21,810.46 and 9,831.34

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Solution

The fourth proportional to 15,797.26, 21,810.46 and 9,831.34 is: 13,573.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,797.26 : 21,810.46 = 9,831.34 : x
  2. Step 2: Convert to fraction form
    15,797.26/21,810.46 = 9,831.34/x
  3. Step 3: Cross multiply
    15,797.26x = 21,810.46 × 9,831.34
  4. Step 4: Simplify right side
    15,797.26x = 214,425,968.71
  5. Step 5: Solve for x
    x = 214,425,968.71/15,797.26
  6. Step 6: Final answer
    x = 13,573.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.