Home / 13,256.80-19,890.60-6,684.88

Finding the Fourth Proportional to 13,256.80, 19,890.60 and 6,684.88

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Solution

The fourth proportional to 13,256.80, 19,890.60 and 6,684.88 is: 10,030.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.80 : 19,890.60 = 6,684.88 : x
  2. Step 2: Convert to fraction form
    13,256.80/19,890.60 = 6,684.88/x
  3. Step 3: Cross multiply
    13,256.80x = 19,890.60 × 6,684.88
  4. Step 4: Simplify right side
    13,256.80x = 132,966,274.13
  5. Step 5: Solve for x
    x = 132,966,274.13/13,256.80
  6. Step 6: Final answer
    x = 10,030.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.