Home / 15,388.80-23,090.40-8,001.60

Finding the Fourth Proportional to 15,388.80, 23,090.40 and 8,001.60

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Solution

The fourth proportional to 15,388.80, 23,090.40 and 8,001.60 is: 12,006.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,388.80 : 23,090.40 = 8,001.60 : x
  2. Step 2: Convert to fraction form
    15,388.80/23,090.40 = 8,001.60/x
  3. Step 3: Cross multiply
    15,388.80x = 23,090.40 × 8,001.60
  4. Step 4: Simplify right side
    15,388.80x = 184,760,144.64
  5. Step 5: Solve for x
    x = 184,760,144.64/15,388.80
  6. Step 6: Final answer
    x = 12,006.14

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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.