Home / 13,675.08-18,873.30-7,708.22

Finding the Fourth Proportional to 13,675.08, 18,873.30 and 7,708.22

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Solution

The fourth proportional to 13,675.08, 18,873.30 and 7,708.22 is: 10,638.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.08 : 18,873.30 = 7,708.22 : x
  2. Step 2: Convert to fraction form
    13,675.08/18,873.30 = 7,708.22/x
  3. Step 3: Cross multiply
    13,675.08x = 18,873.30 × 7,708.22
  4. Step 4: Simplify right side
    13,675.08x = 145,479,548.53
  5. Step 5: Solve for x
    x = 145,479,548.53/13,675.08
  6. Step 6: Final answer
    x = 10,638.30

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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.