Home / 11,130.54-15,355.70-6,652.64

Finding the Fourth Proportional to 11,130.54, 15,355.70 and 6,652.64

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Solution

The fourth proportional to 11,130.54, 15,355.70 and 6,652.64 is: 9,177.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.54 : 15,355.70 = 6,652.64 : x
  2. Step 2: Convert to fraction form
    11,130.54/15,355.70 = 6,652.64/x
  3. Step 3: Cross multiply
    11,130.54x = 15,355.70 × 6,652.64
  4. Step 4: Simplify right side
    11,130.54x = 102,155,944.05
  5. Step 5: Solve for x
    x = 102,155,944.05/11,130.54
  6. Step 6: Final answer
    x = 9,177.99

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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.