Home / 12,886.56-17,783.52-7,297.44

Finding the Fourth Proportional to 12,886.56, 17,783.52 and 7,297.44

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Solution

The fourth proportional to 12,886.56, 17,783.52 and 7,297.44 is: 10,070.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886.56 : 17,783.52 = 7,297.44 : x
  2. Step 2: Convert to fraction form
    12,886.56/17,783.52 = 7,297.44/x
  3. Step 3: Cross multiply
    12,886.56x = 17,783.52 × 7,297.44
  4. Step 4: Simplify right side
    12,886.56x = 129,774,170.19
  5. Step 5: Solve for x
    x = 129,774,170.19/12,886.56
  6. Step 6: Final answer
    x = 10,070.51

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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.