Home / 11,946.40-16,486.56-6,641.76

Finding the Fourth Proportional to 11,946.40, 16,486.56 and 6,641.76

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Solution

The fourth proportional to 11,946.40, 16,486.56 and 6,641.76 is: 9,165.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,946.40 : 16,486.56 = 6,641.76 : x
  2. Step 2: Convert to fraction form
    11,946.40/16,486.56 = 6,641.76/x
  3. Step 3: Cross multiply
    11,946.40x = 16,486.56 × 6,641.76
  4. Step 4: Simplify right side
    11,946.40x = 109,499,774.75
  5. Step 5: Solve for x
    x = 109,499,774.75/11,946.40
  6. Step 6: Final answer
    x = 9,165.92

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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.