Home / 11,090.08-15,305.64-6,374.20

Finding the Fourth Proportional to 11,090.08, 15,305.64 and 6,374.20

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Solution

The fourth proportional to 11,090.08, 15,305.64 and 6,374.20 is: 8,797.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,090.08 : 15,305.64 = 6,374.20 : x
  2. Step 2: Convert to fraction form
    11,090.08/15,305.64 = 6,374.20/x
  3. Step 3: Cross multiply
    11,090.08x = 15,305.64 × 6,374.20
  4. Step 4: Simplify right side
    11,090.08x = 97,561,210.49
  5. Step 5: Solve for x
    x = 97,561,210.49/11,090.08
  6. Step 6: Final answer
    x = 8,797.16

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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.