Home / 7,905.78-10,897.41-6,224.52

Finding the Fourth Proportional to 7,905.78, 10,897.41 and 6,224.52

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Solution

The fourth proportional to 7,905.78, 10,897.41 and 6,224.52 is: 8,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.78 : 10,897.41 = 6,224.52 : x
  2. Step 2: Convert to fraction form
    7,905.78/10,897.41 = 6,224.52/x
  3. Step 3: Cross multiply
    7,905.78x = 10,897.41 × 6,224.52
  4. Step 4: Simplify right side
    7,905.78x = 67,831,162.55
  5. Step 5: Solve for x
    x = 67,831,162.55/7,905.78
  6. Step 6: Final answer
    x = 8,579.95

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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.