Home / 9,917.63-13,686.86-5,727.23

Finding the Fourth Proportional to 9,917.63, 13,686.86 and 5,727.23

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Solution

The fourth proportional to 9,917.63, 13,686.86 and 5,727.23 is: 7,903.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.63 : 13,686.86 = 5,727.23 : x
  2. Step 2: Convert to fraction form
    9,917.63/13,686.86 = 5,727.23/x
  3. Step 3: Cross multiply
    9,917.63x = 13,686.86 × 5,727.23
  4. Step 4: Simplify right side
    9,917.63x = 78,387,741.08
  5. Step 5: Solve for x
    x = 78,387,741.08/9,917.63
  6. Step 6: Final answer
    x = 7,903.88

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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.