Home / 10,090.98-15,133.40-8,111.92

Finding the Fourth Proportional to 10,090.98, 15,133.40 and 8,111.92

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Solution

The fourth proportional to 10,090.98, 15,133.40 and 8,111.92 is: 12,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,090.98 : 15,133.40 = 8,111.92 : x
  2. Step 2: Convert to fraction form
    10,090.98/15,133.40 = 8,111.92/x
  3. Step 3: Cross multiply
    10,090.98x = 15,133.40 × 8,111.92
  4. Step 4: Simplify right side
    10,090.98x = 122,760,851.73
  5. Step 5: Solve for x
    x = 122,760,851.73/10,090.98
  6. Step 6: Final answer
    x = 12,165.40

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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.