Home / 7,830.84-10,806.24-4,685.16

Finding the Fourth Proportional to 7,830.84, 10,806.24 and 4,685.16

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Solution

The fourth proportional to 7,830.84, 10,806.24 and 4,685.16 is: 6,465.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.84 : 10,806.24 = 4,685.16 : x
  2. Step 2: Convert to fraction form
    7,830.84/10,806.24 = 4,685.16/x
  3. Step 3: Cross multiply
    7,830.84x = 10,806.24 × 4,685.16
  4. Step 4: Simplify right side
    7,830.84x = 50,628,963.40
  5. Step 5: Solve for x
    x = 50,628,963.40/7,830.84
  6. Step 6: Final answer
    x = 6,465.33

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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.