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Finding the Fourth Proportional to 7,656.71, 11,477.77 and 2,458.94

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Solution

The fourth proportional to 7,656.71, 11,477.77 and 2,458.94 is: 3,686.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,656.71 : 11,477.77 = 2,458.94 : x
  2. Step 2: Convert to fraction form
    7,656.71/11,477.77 = 2,458.94/x
  3. Step 3: Cross multiply
    7,656.71x = 11,477.77 × 2,458.94
  4. Step 4: Simplify right side
    7,656.71x = 28,223,119.07
  5. Step 5: Solve for x
    x = 28,223,119.07/7,656.71
  6. Step 6: Final answer
    x = 3,686.06

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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.