Home / 11,928.48-16,460.88-6,623.19

Finding the Fourth Proportional to 11,928.48, 16,460.88 and 6,623.19

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Solution

The fourth proportional to 11,928.48, 16,460.88 and 6,623.19 is: 9,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.48 : 16,460.88 = 6,623.19 : x
  2. Step 2: Convert to fraction form
    11,928.48/16,460.88 = 6,623.19/x
  3. Step 3: Cross multiply
    11,928.48x = 16,460.88 × 6,623.19
  4. Step 4: Simplify right side
    11,928.48x = 109,023,535.81
  5. Step 5: Solve for x
    x = 109,023,535.81/11,928.48
  6. Step 6: Final answer
    x = 9,139.77

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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.