Home / 13,429.08-18,529.44-7,459.92

Finding the Fourth Proportional to 13,429.08, 18,529.44 and 7,459.92

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Solution

The fourth proportional to 13,429.08, 18,529.44 and 7,459.92 is: 10,293.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.08 : 18,529.44 = 7,459.92 : x
  2. Step 2: Convert to fraction form
    13,429.08/18,529.44 = 7,459.92/x
  3. Step 3: Cross multiply
    13,429.08x = 18,529.44 × 7,459.92
  4. Step 4: Simplify right side
    13,429.08x = 138,228,140.04
  5. Step 5: Solve for x
    x = 138,228,140.04/13,429.08
  6. Step 6: Final answer
    x = 10,293.20

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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.