Home / 7,677.60-11,513.82-2,678.70

Finding the Fourth Proportional to 7,677.60, 11,513.82 and 2,678.70

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Solution

The fourth proportional to 7,677.60, 11,513.82 and 2,678.70 is: 4,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,677.60 : 11,513.82 = 2,678.70 : x
  2. Step 2: Convert to fraction form
    7,677.60/11,513.82 = 2,678.70/x
  3. Step 3: Cross multiply
    7,677.60x = 11,513.82 × 2,678.70
  4. Step 4: Simplify right side
    7,677.60x = 30,842,069.63
  5. Step 5: Solve for x
    x = 30,842,069.63/7,677.60
  6. Step 6: Final answer
    x = 4,017.15

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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.