Home / 13,636.28-20,437.68-7,058.72

Finding the Fourth Proportional to 13,636.28, 20,437.68 and 7,058.72

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Solution

The fourth proportional to 13,636.28, 20,437.68 and 7,058.72 is: 10,579.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.28 : 20,437.68 = 7,058.72 : x
  2. Step 2: Convert to fraction form
    13,636.28/20,437.68 = 7,058.72/x
  3. Step 3: Cross multiply
    13,636.28x = 20,437.68 × 7,058.72
  4. Step 4: Simplify right side
    13,636.28x = 144,263,860.57
  5. Step 5: Solve for x
    x = 144,263,860.57/13,636.28
  6. Step 6: Final answer
    x = 10,579.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.