Home / 12,477.32-17,218.71-6,888.32

Finding the Fourth Proportional to 12,477.32, 17,218.71 and 6,888.32

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Solution

The fourth proportional to 12,477.32, 17,218.71 and 6,888.32 is: 9,505.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477.32 : 17,218.71 = 6,888.32 : x
  2. Step 2: Convert to fraction form
    12,477.32/17,218.71 = 6,888.32/x
  3. Step 3: Cross multiply
    12,477.32x = 17,218.71 × 6,888.32
  4. Step 4: Simplify right side
    12,477.32x = 118,607,863.93
  5. Step 5: Solve for x
    x = 118,607,863.93/12,477.32
  6. Step 6: Final answer
    x = 9,505.88

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Double scale
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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.