Home / 11,911.64-17,875.66-5,345.16

Finding the Fourth Proportional to 11,911.64, 17,875.66 and 5,345.16

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Solution

The fourth proportional to 11,911.64, 17,875.66 and 5,345.16 is: 8,021.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.64 : 17,875.66 = 5,345.16 : x
  2. Step 2: Convert to fraction form
    11,911.64/17,875.66 = 5,345.16/x
  3. Step 3: Cross multiply
    11,911.64x = 17,875.66 × 5,345.16
  4. Step 4: Simplify right side
    11,911.64x = 95,548,262.81
  5. Step 5: Solve for x
    x = 95,548,262.81/11,911.64
  6. Step 6: Final answer
    x = 8,021.42

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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.