Home / 11,141.58-15,376.70-6,425.76

Finding the Fourth Proportional to 11,141.58, 15,376.70 and 6,425.76

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Solution

The fourth proportional to 11,141.58, 15,376.70 and 6,425.76 is: 8,868.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.58 : 15,376.70 = 6,425.76 : x
  2. Step 2: Convert to fraction form
    11,141.58/15,376.70 = 6,425.76/x
  3. Step 3: Cross multiply
    11,141.58x = 15,376.70 × 6,425.76
  4. Step 4: Simplify right side
    11,141.58x = 98,806,983.79
  5. Step 5: Solve for x
    x = 98,806,983.79/11,141.58
  6. Step 6: Final answer
    x = 8,868.31

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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.