Home / 11,196.95-15,454.01-6,420.11

Finding the Fourth Proportional to 11,196.95, 15,454.01 and 6,420.11

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Solution

The fourth proportional to 11,196.95, 15,454.01 and 6,420.11 is: 8,861.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,196.95 : 15,454.01 = 6,420.11 : x
  2. Step 2: Convert to fraction form
    11,196.95/15,454.01 = 6,420.11/x
  3. Step 3: Cross multiply
    11,196.95x = 15,454.01 × 6,420.11
  4. Step 4: Simplify right side
    11,196.95x = 99,216,382.92
  5. Step 5: Solve for x
    x = 99,216,382.92/11,196.95
  6. Step 6: Final answer
    x = 8,861.02

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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.