Home / 11,720.59-16,177.32-7,950.06

Finding the Fourth Proportional to 11,720.59, 16,177.32 and 7,950.06

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Solution

The fourth proportional to 11,720.59, 16,177.32 and 7,950.06 is: 10,973.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.59 : 16,177.32 = 7,950.06 : x
  2. Step 2: Convert to fraction form
    11,720.59/16,177.32 = 7,950.06/x
  3. Step 3: Cross multiply
    11,720.59x = 16,177.32 × 7,950.06
  4. Step 4: Simplify right side
    11,720.59x = 128,610,664.64
  5. Step 5: Solve for x
    x = 128,610,664.64/11,720.59
  6. Step 6: Final answer
    x = 10,973.05

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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.