Home / 11,928.42-16,459.47-6,623.28

Finding the Fourth Proportional to 11,928.42, 16,459.47 and 6,623.28

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Solution

The fourth proportional to 11,928.42, 16,459.47 and 6,623.28 is: 9,139.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.42 : 16,459.47 = 6,623.28 : x
  2. Step 2: Convert to fraction form
    11,928.42/16,459.47 = 6,623.28/x
  3. Step 3: Cross multiply
    11,928.42x = 16,459.47 × 6,623.28
  4. Step 4: Simplify right side
    11,928.42x = 109,015,678.46
  5. Step 5: Solve for x
    x = 109,015,678.46/11,928.42
  6. Step 6: Final answer
    x = 9,139.15

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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.