Home / 11,261.76-16,886.58-7,981.26

Finding the Fourth Proportional to 11,261.76, 16,886.58 and 7,981.26

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Solution

The fourth proportional to 11,261.76, 16,886.58 and 7,981.26 is: 11,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,261.76 : 16,886.58 = 7,981.26 : x
  2. Step 2: Convert to fraction form
    11,261.76/16,886.58 = 7,981.26/x
  3. Step 3: Cross multiply
    11,261.76x = 16,886.58 × 7,981.26
  4. Step 4: Simplify right side
    11,261.76x = 134,776,185.49
  5. Step 5: Solve for x
    x = 134,776,185.49/11,261.76
  6. Step 6: Final answer
    x = 11,967.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.