Home / 13,427.99-18,529.68-7,459.30

Finding the Fourth Proportional to 13,427.99, 18,529.68 and 7,459.30

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Solution

The fourth proportional to 13,427.99, 18,529.68 and 7,459.30 is: 10,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.99 : 18,529.68 = 7,459.30 : x
  2. Step 2: Convert to fraction form
    13,427.99/18,529.68 = 7,459.30/x
  3. Step 3: Cross multiply
    13,427.99x = 18,529.68 × 7,459.30
  4. Step 4: Simplify right side
    13,427.99x = 138,218,442.02
  5. Step 5: Solve for x
    x = 138,218,442.02/13,427.99
  6. Step 6: Final answer
    x = 10,293.31

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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.