Home / 8,656.53-11,948.45-5,120.97

Finding the Fourth Proportional to 8,656.53, 11,948.45 and 5,120.97

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Solution

The fourth proportional to 8,656.53, 11,948.45 and 5,120.97 is: 7,068.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.53 : 11,948.45 = 5,120.97 : x
  2. Step 2: Convert to fraction form
    8,656.53/11,948.45 = 5,120.97/x
  3. Step 3: Cross multiply
    8,656.53x = 11,948.45 × 5,120.97
  4. Step 4: Simplify right side
    8,656.53x = 61,187,654.00
  5. Step 5: Solve for x
    x = 61,187,654.00/8,656.53
  6. Step 6: Final answer
    x = 7,068.38

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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.