Home / 11,395.34-15,725.55-6,359.40

Finding the Fourth Proportional to 11,395.34, 15,725.55 and 6,359.40

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Solution

The fourth proportional to 11,395.34, 15,725.55 and 6,359.40 is: 8,775.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,395.34 : 15,725.55 = 6,359.40 : x
  2. Step 2: Convert to fraction form
    11,395.34/15,725.55 = 6,359.40/x
  3. Step 3: Cross multiply
    11,395.34x = 15,725.55 × 6,359.40
  4. Step 4: Simplify right side
    11,395.34x = 100,005,062.67
  5. Step 5: Solve for x
    x = 100,005,062.67/11,395.34
  6. Step 6: Final answer
    x = 8,775.97

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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.