Home / 13,428.24-18,530.94-7,460.46

Finding the Fourth Proportional to 13,428.24, 18,530.94 and 7,460.46

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Solution

The fourth proportional to 13,428.24, 18,530.94 and 7,460.46 is: 10,295.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428.24 : 18,530.94 = 7,460.46 : x
  2. Step 2: Convert to fraction form
    13,428.24/18,530.94 = 7,460.46/x
  3. Step 3: Cross multiply
    13,428.24x = 18,530.94 × 7,460.46
  4. Step 4: Simplify right side
    13,428.24x = 138,249,336.63
  5. Step 5: Solve for x
    x = 138,249,336.63/13,428.24
  6. Step 6: Final answer
    x = 10,295.42

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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.