Home / 10,090.32-15,130.46-6,389.73

Finding the Fourth Proportional to 10,090.32, 15,130.46 and 6,389.73

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Solution

The fourth proportional to 10,090.32, 15,130.46 and 6,389.73 is: 9,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,090.32 : 15,130.46 = 6,389.73 : x
  2. Step 2: Convert to fraction form
    10,090.32/15,130.46 = 6,389.73/x
  3. Step 3: Cross multiply
    10,090.32x = 15,130.46 × 6,389.73
  4. Step 4: Simplify right side
    10,090.32x = 96,679,570.15
  5. Step 5: Solve for x
    x = 96,679,570.15/10,090.32
  6. Step 6: Final answer
    x = 9,581.42

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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.