Home / 21,262.74-29,339.46-12,763.06

Finding the Fourth Proportional to 21,262.74, 29,339.46 and 12,763.06

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Solution

The fourth proportional to 21,262.74, 29,339.46 and 12,763.06 is: 17,611.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,262.74 : 29,339.46 = 12,763.06 : x
  2. Step 2: Convert to fraction form
    21,262.74/29,339.46 = 12,763.06/x
  3. Step 3: Cross multiply
    21,262.74x = 29,339.46 × 12,763.06
  4. Step 4: Simplify right side
    21,262.74x = 374,461,288.35
  5. Step 5: Solve for x
    x = 374,461,288.35/21,262.74
  6. Step 6: Final answer
    x = 17,611.15

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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.