Home / 8,313.87-12,460.40-4,155.05

Finding the Fourth Proportional to 8,313.87, 12,460.40 and 4,155.05

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Solution

The fourth proportional to 8,313.87, 12,460.40 and 4,155.05 is: 6,227.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.87 : 12,460.40 = 4,155.05 : x
  2. Step 2: Convert to fraction form
    8,313.87/12,460.40 = 4,155.05/x
  3. Step 3: Cross multiply
    8,313.87x = 12,460.40 × 4,155.05
  4. Step 4: Simplify right side
    8,313.87x = 51,773,501.94
  5. Step 5: Solve for x
    x = 51,773,501.94/8,313.87
  6. Step 6: Final answer
    x = 6,227.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.