Home / 11,435.16-15,777.36-6,717.72

Finding the Fourth Proportional to 11,435.16, 15,777.36 and 6,717.72

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Solution

The fourth proportional to 11,435.16, 15,777.36 and 6,717.72 is: 9,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,435.16 : 15,777.36 = 6,717.72 : x
  2. Step 2: Convert to fraction form
    11,435.16/15,777.36 = 6,717.72/x
  3. Step 3: Cross multiply
    11,435.16x = 15,777.36 × 6,717.72
  4. Step 4: Simplify right side
    11,435.16x = 105,987,886.82
  5. Step 5: Solve for x
    x = 105,987,886.82/11,435.16
  6. Step 6: Final answer
    x = 9,268.60

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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.