Home / 7,868.53-10,858.35-4,685.50

Finding the Fourth Proportional to 7,868.53, 10,858.35 and 4,685.50

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Solution

The fourth proportional to 7,868.53, 10,858.35 and 4,685.50 is: 6,465.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.53 : 10,858.35 = 4,685.50 : x
  2. Step 2: Convert to fraction form
    7,868.53/10,858.35 = 4,685.50/x
  3. Step 3: Cross multiply
    7,868.53x = 10,858.35 × 4,685.50
  4. Step 4: Simplify right side
    7,868.53x = 50,876,798.93
  5. Step 5: Solve for x
    x = 50,876,798.93/7,868.53
  6. Step 6: Final answer
    x = 6,465.86

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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.