Home / 12,538.49-17,303.31-6,873.78

Finding the Fourth Proportional to 12,538.49, 17,303.31 and 6,873.78

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Solution

The fourth proportional to 12,538.49, 17,303.31 and 6,873.78 is: 9,485.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,538.49 : 17,303.31 = 6,873.78 : x
  2. Step 2: Convert to fraction form
    12,538.49/17,303.31 = 6,873.78/x
  3. Step 3: Cross multiply
    12,538.49x = 17,303.31 × 6,873.78
  4. Step 4: Simplify right side
    12,538.49x = 118,939,146.21
  5. Step 5: Solve for x
    x = 118,939,146.21/12,538.49
  6. Step 6: Final answer
    x = 9,485.93

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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.