Home / 12,142.58-16,756.47-6,837.41

Finding the Fourth Proportional to 12,142.58, 16,756.47 and 6,837.41

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Solution

The fourth proportional to 12,142.58, 16,756.47 and 6,837.41 is: 9,435.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142.58 : 16,756.47 = 6,837.41 : x
  2. Step 2: Convert to fraction form
    12,142.58/16,756.47 = 6,837.41/x
  3. Step 3: Cross multiply
    12,142.58x = 16,756.47 × 6,837.41
  4. Step 4: Simplify right side
    12,142.58x = 114,570,897.43
  5. Step 5: Solve for x
    x = 114,570,897.43/12,142.58
  6. Step 6: Final answer
    x = 9,435.47

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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.