Home / 10,090.89-15,127.11-4,247.91

Finding the Fourth Proportional to 10,090.89, 15,127.11 and 4,247.91

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Solution

The fourth proportional to 10,090.89, 15,127.11 and 4,247.91 is: 6,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,090.89 : 15,127.11 = 4,247.91 : x
  2. Step 2: Convert to fraction form
    10,090.89/15,127.11 = 4,247.91/x
  3. Step 3: Cross multiply
    10,090.89x = 15,127.11 × 4,247.91
  4. Step 4: Simplify right side
    10,090.89x = 64,258,601.84
  5. Step 5: Solve for x
    x = 64,258,601.84/10,090.89
  6. Step 6: Final answer
    x = 6,367.98

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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.