Home / 11,412.40-15,748.92-6,376.72

Finding the Fourth Proportional to 11,412.40, 15,748.92 and 6,376.72

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Solution

The fourth proportional to 11,412.40, 15,748.92 and 6,376.72 is: 8,799.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,412.40 : 15,748.92 = 6,376.72 : x
  2. Step 2: Convert to fraction form
    11,412.40/15,748.92 = 6,376.72/x
  3. Step 3: Cross multiply
    11,412.40x = 15,748.92 × 6,376.72
  4. Step 4: Simplify right side
    11,412.40x = 100,426,453.14
  5. Step 5: Solve for x
    x = 100,426,453.14/11,412.40
  6. Step 6: Final answer
    x = 8,799.77

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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.