Home / 13,427.37-18,531.08-7,760.31

Finding the Fourth Proportional to 13,427.37, 18,531.08 and 7,760.31

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Solution

The fourth proportional to 13,427.37, 18,531.08 and 7,760.31 is: 10,709.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.37 : 18,531.08 = 7,760.31 : x
  2. Step 2: Convert to fraction form
    13,427.37/18,531.08 = 7,760.31/x
  3. Step 3: Cross multiply
    13,427.37x = 18,531.08 × 7,760.31
  4. Step 4: Simplify right side
    13,427.37x = 143,806,846.24
  5. Step 5: Solve for x
    x = 143,806,846.24/13,427.37
  6. Step 6: Final answer
    x = 10,709.98

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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.