Home / 11,816.52-16,307.72-6,512.28

Finding the Fourth Proportional to 11,816.52, 16,307.72 and 6,512.28

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Solution

The fourth proportional to 11,816.52, 16,307.72 and 6,512.28 is: 8,987.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.52 : 16,307.72 = 6,512.28 : x
  2. Step 2: Convert to fraction form
    11,816.52/16,307.72 = 6,512.28/x
  3. Step 3: Cross multiply
    11,816.52x = 16,307.72 × 6,512.28
  4. Step 4: Simplify right side
    11,816.52x = 106,200,406.24
  5. Step 5: Solve for x
    x = 106,200,406.24/11,816.52
  6. Step 6: Final answer
    x = 8,987.45

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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.