Home / 10,125.45-13,979.63-6,353.79

Finding the Fourth Proportional to 10,125.45, 13,979.63 and 6,353.79

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Solution

The fourth proportional to 10,125.45, 13,979.63 and 6,353.79 is: 8,772.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.45 : 13,979.63 = 6,353.79 : x
  2. Step 2: Convert to fraction form
    10,125.45/13,979.63 = 6,353.79/x
  3. Step 3: Cross multiply
    10,125.45x = 13,979.63 × 6,353.79
  4. Step 4: Simplify right side
    10,125.45x = 88,823,601.53
  5. Step 5: Solve for x
    x = 88,823,601.53/10,125.45
  6. Step 6: Final answer
    x = 8,772.31

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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.