Home / 13,090.56-19,644.48-6,938.88

Finding the Fourth Proportional to 13,090.56, 19,644.48 and 6,938.88

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Solution

The fourth proportional to 13,090.56, 19,644.48 and 6,938.88 is: 10,412.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.56 : 19,644.48 = 6,938.88 : x
  2. Step 2: Convert to fraction form
    13,090.56/19,644.48 = 6,938.88/x
  3. Step 3: Cross multiply
    13,090.56x = 19,644.48 × 6,938.88
  4. Step 4: Simplify right side
    13,090.56x = 136,310,689.38
  5. Step 5: Solve for x
    x = 136,310,689.38/13,090.56
  6. Step 6: Final answer
    x = 10,412.90

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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.