Home / 11,190.15-15,443.58-6,410.47

Finding the Fourth Proportional to 11,190.15, 15,443.58 and 6,410.47

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Solution

The fourth proportional to 11,190.15, 15,443.58 and 6,410.47 is: 8,847.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.15 : 15,443.58 = 6,410.47 : x
  2. Step 2: Convert to fraction form
    11,190.15/15,443.58 = 6,410.47/x
  3. Step 3: Cross multiply
    11,190.15x = 15,443.58 × 6,410.47
  4. Step 4: Simplify right side
    11,190.15x = 99,000,606.28
  5. Step 5: Solve for x
    x = 99,000,606.28/11,190.15
  6. Step 6: Final answer
    x = 8,847.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.