Home / 11,928.18-16,460.64-6,622.68

Finding the Fourth Proportional to 11,928.18, 16,460.64 and 6,622.68

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Solution

The fourth proportional to 11,928.18, 16,460.64 and 6,622.68 is: 9,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.18 : 16,460.64 = 6,622.68 : x
  2. Step 2: Convert to fraction form
    11,928.18/16,460.64 = 6,622.68/x
  3. Step 3: Cross multiply
    11,928.18x = 16,460.64 × 6,622.68
  4. Step 4: Simplify right side
    11,928.18x = 109,013,551.32
  5. Step 5: Solve for x
    x = 109,013,551.32/11,928.18
  6. Step 6: Final answer
    x = 9,139.16

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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.