Home / 11,518.02-15,883.74-6,979.68

Finding the Fourth Proportional to 11,518.02, 15,883.74 and 6,979.68

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Solution

The fourth proportional to 11,518.02, 15,883.74 and 6,979.68 is: 9,625.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.02 : 15,883.74 = 6,979.68 : x
  2. Step 2: Convert to fraction form
    11,518.02/15,883.74 = 6,979.68/x
  3. Step 3: Cross multiply
    11,518.02x = 15,883.74 × 6,979.68
  4. Step 4: Simplify right side
    11,518.02x = 110,863,422.40
  5. Step 5: Solve for x
    x = 110,863,422.40/11,518.02
  6. Step 6: Final answer
    x = 9,625.22

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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.