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Finding the Fourth Proportional to 8,036.40, 12,064.86 and 7,953.60

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Solution

The fourth proportional to 8,036.40, 12,064.86 and 7,953.60 is: 11,940.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,036.40 : 12,064.86 = 7,953.60 : x
  2. Step 2: Convert to fraction form
    8,036.40/12,064.86 = 7,953.60/x
  3. Step 3: Cross multiply
    8,036.40x = 12,064.86 × 7,953.60
  4. Step 4: Simplify right side
    8,036.40x = 95,959,070.50
  5. Step 5: Solve for x
    x = 95,959,070.50/8,036.40
  6. Step 6: Final answer
    x = 11,940.55

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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.