Home / 13,427.88-18,525.36-9,899.52

Finding the Fourth Proportional to 13,427.88, 18,525.36 and 9,899.52

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Solution

The fourth proportional to 13,427.88, 18,525.36 and 9,899.52 is: 13,657.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.88 : 18,525.36 = 9,899.52 : x
  2. Step 2: Convert to fraction form
    13,427.88/18,525.36 = 9,899.52/x
  3. Step 3: Cross multiply
    13,427.88x = 18,525.36 × 9,899.52
  4. Step 4: Simplify right side
    13,427.88x = 183,392,171.83
  5. Step 5: Solve for x
    x = 183,392,171.83/13,427.88
  6. Step 6: Final answer
    x = 13,657.57

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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.