Home / 11,159.07-15,399.72-6,123.78

Finding the Fourth Proportional to 11,159.07, 15,399.72 and 6,123.78

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Solution

The fourth proportional to 11,159.07, 15,399.72 and 6,123.78 is: 8,450.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,159.07 : 15,399.72 = 6,123.78 : x
  2. Step 2: Convert to fraction form
    11,159.07/15,399.72 = 6,123.78/x
  3. Step 3: Cross multiply
    11,159.07x = 15,399.72 × 6,123.78
  4. Step 4: Simplify right side
    11,159.07x = 94,304,497.34
  5. Step 5: Solve for x
    x = 94,304,497.34/11,159.07
  6. Step 6: Final answer
    x = 8,450.93

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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.