Home / 7,868.61-10,858.71-4,511.49

Finding the Fourth Proportional to 7,868.61, 10,858.71 and 4,511.49

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Solution

The fourth proportional to 7,868.61, 10,858.71 and 4,511.49 is: 6,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.61 : 10,858.71 = 4,511.49 : x
  2. Step 2: Convert to fraction form
    7,868.61/10,858.71 = 4,511.49/x
  3. Step 3: Cross multiply
    7,868.61x = 10,858.71 × 4,511.49
  4. Step 4: Simplify right side
    7,868.61x = 48,988,961.58
  5. Step 5: Solve for x
    x = 48,988,961.58/7,868.61
  6. Step 6: Final answer
    x = 6,225.87

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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.