Home / 7,837.59-11,756.39-2,643.47

Finding the Fourth Proportional to 7,837.59, 11,756.39 and 2,643.47

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Solution

The fourth proportional to 7,837.59, 11,756.39 and 2,643.47 is: 3,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.59 : 11,756.39 = 2,643.47 : x
  2. Step 2: Convert to fraction form
    7,837.59/11,756.39 = 2,643.47/x
  3. Step 3: Cross multiply
    7,837.59x = 11,756.39 × 2,643.47
  4. Step 4: Simplify right side
    7,837.59x = 31,077,651.23
  5. Step 5: Solve for x
    x = 31,077,651.23/7,837.59
  6. Step 6: Final answer
    x = 3,965.20

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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.