Home / 11,412.29-15,748.78-6,376.58

Finding the Fourth Proportional to 11,412.29, 15,748.78 and 6,376.58

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Solution

The fourth proportional to 11,412.29, 15,748.78 and 6,376.58 is: 8,799.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,412.29 : 15,748.78 = 6,376.58 : x
  2. Step 2: Convert to fraction form
    11,412.29/15,748.78 = 6,376.58/x
  3. Step 3: Cross multiply
    11,412.29x = 15,748.78 × 6,376.58
  4. Step 4: Simplify right side
    11,412.29x = 100,423,244.95
  5. Step 5: Solve for x
    x = 100,423,244.95/11,412.29
  6. Step 6: Final answer
    x = 8,799.57

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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.