Home / 7,759.84-11,645.40-5,817.28

Finding the Fourth Proportional to 7,759.84, 11,645.40 and 5,817.28

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Solution

The fourth proportional to 7,759.84, 11,645.40 and 5,817.28 is: 8,730.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.84 : 11,645.40 = 5,817.28 : x
  2. Step 2: Convert to fraction form
    7,759.84/11,645.40 = 5,817.28/x
  3. Step 3: Cross multiply
    7,759.84x = 11,645.40 × 5,817.28
  4. Step 4: Simplify right side
    7,759.84x = 67,744,552.51
  5. Step 5: Solve for x
    x = 67,744,552.51/7,759.84
  6. Step 6: Final answer
    x = 8,730.15

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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.