Home / 12,186.16-18,268.30-4,389.52

Finding the Fourth Proportional to 12,186.16, 18,268.30 and 4,389.52

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Solution

The fourth proportional to 12,186.16, 18,268.30 and 4,389.52 is: 6,580.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186.16 : 18,268.30 = 4,389.52 : x
  2. Step 2: Convert to fraction form
    12,186.16/18,268.30 = 4,389.52/x
  3. Step 3: Cross multiply
    12,186.16x = 18,268.30 × 4,389.52
  4. Step 4: Simplify right side
    12,186.16x = 80,189,068.22
  5. Step 5: Solve for x
    x = 80,189,068.22/12,186.16
  6. Step 6: Final answer
    x = 6,580.34

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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.