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Finding the Fourth Proportional to 8,333.55, 11,485.86 and 7,264.65

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Solution

The fourth proportional to 8,333.55, 11,485.86 and 7,264.65 is: 10,012.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,333.55 : 11,485.86 = 7,264.65 : x
  2. Step 2: Convert to fraction form
    8,333.55/11,485.86 = 7,264.65/x
  3. Step 3: Cross multiply
    8,333.55x = 11,485.86 × 7,264.65
  4. Step 4: Simplify right side
    8,333.55x = 83,440,752.85
  5. Step 5: Solve for x
    x = 83,440,752.85/8,333.55
  6. Step 6: Final answer
    x = 10,012.63

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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.