Home / 11,980.77-16,533.58-6,603.40

Finding the Fourth Proportional to 11,980.77, 16,533.58 and 6,603.40

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Solution

The fourth proportional to 11,980.77, 16,533.58 and 6,603.40 is: 9,112.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,980.77 : 16,533.58 = 6,603.40 : x
  2. Step 2: Convert to fraction form
    11,980.77/16,533.58 = 6,603.40/x
  3. Step 3: Cross multiply
    11,980.77x = 16,533.58 × 6,603.40
  4. Step 4: Simplify right side
    11,980.77x = 109,177,886.64
  5. Step 5: Solve for x
    x = 109,177,886.64/11,980.77
  6. Step 6: Final answer
    x = 9,112.76

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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.