Home / 12,837.40-17,714.86-7,531.80

Finding the Fourth Proportional to 12,837.40, 17,714.86 and 7,531.80

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Solution

The fourth proportional to 12,837.40, 17,714.86 and 7,531.80 is: 10,393.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.40 : 17,714.86 = 7,531.80 : x
  2. Step 2: Convert to fraction form
    12,837.40/17,714.86 = 7,531.80/x
  3. Step 3: Cross multiply
    12,837.40x = 17,714.86 × 7,531.80
  4. Step 4: Simplify right side
    12,837.40x = 133,424,782.55
  5. Step 5: Solve for x
    x = 133,424,782.55/12,837.40
  6. Step 6: Final answer
    x = 10,393.44

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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.