Home / 11,635.60-16,038.46-7,857.56

Finding the Fourth Proportional to 11,635.60, 16,038.46 and 7,857.56

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Solution

The fourth proportional to 11,635.60, 16,038.46 and 7,857.56 is: 10,830.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,635.60 : 16,038.46 = 7,857.56 : x
  2. Step 2: Convert to fraction form
    11,635.60/16,038.46 = 7,857.56/x
  3. Step 3: Cross multiply
    11,635.60x = 16,038.46 × 7,857.56
  4. Step 4: Simplify right side
    11,635.60x = 126,023,077.26
  5. Step 5: Solve for x
    x = 126,023,077.26/11,635.60
  6. Step 6: Final answer
    x = 10,830.82

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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.