Home / 13,256.28-18,293.85-7,288.20

Finding the Fourth Proportional to 13,256.28, 18,293.85 and 7,288.20

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Solution

The fourth proportional to 13,256.28, 18,293.85 and 7,288.20 is: 10,057.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.28 : 18,293.85 = 7,288.20 : x
  2. Step 2: Convert to fraction form
    13,256.28/18,293.85 = 7,288.20/x
  3. Step 3: Cross multiply
    13,256.28x = 18,293.85 × 7,288.20
  4. Step 4: Simplify right side
    13,256.28x = 133,329,237.57
  5. Step 5: Solve for x
    x = 133,329,237.57/13,256.28
  6. Step 6: Final answer
    x = 10,057.82

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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.