Home / 9,623.40-13,279.96-5,431.56

Finding the Fourth Proportional to 9,623.40, 13,279.96 and 5,431.56

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Solution

The fourth proportional to 9,623.40, 13,279.96 and 5,431.56 is: 7,495.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,623.40 : 13,279.96 = 5,431.56 : x
  2. Step 2: Convert to fraction form
    9,623.40/13,279.96 = 5,431.56/x
  3. Step 3: Cross multiply
    9,623.40x = 13,279.96 × 5,431.56
  4. Step 4: Simplify right side
    9,623.40x = 72,130,899.54
  5. Step 5: Solve for x
    x = 72,130,899.54/9,623.40
  6. Step 6: Final answer
    x = 7,495.37

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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.