Home / 12,181.13-16,807.10-6,874.93

Finding the Fourth Proportional to 12,181.13, 16,807.10 and 6,874.93

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Solution

The fourth proportional to 12,181.13, 16,807.10 and 6,874.93 is: 9,485.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.13 : 16,807.10 = 6,874.93 : x
  2. Step 2: Convert to fraction form
    12,181.13/16,807.10 = 6,874.93/x
  3. Step 3: Cross multiply
    12,181.13x = 16,807.10 × 6,874.93
  4. Step 4: Simplify right side
    12,181.13x = 115,547,528.10
  5. Step 5: Solve for x
    x = 115,547,528.10/12,181.13
  6. Step 6: Final answer
    x = 9,485.78

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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.