Home / 13,715.32-18,934.26-9,516.28

Finding the Fourth Proportional to 13,715.32, 18,934.26 and 9,516.28

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Solution

The fourth proportional to 13,715.32, 18,934.26 and 9,516.28 is: 13,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.32 : 18,934.26 = 9,516.28 : x
  2. Step 2: Convert to fraction form
    13,715.32/18,934.26 = 9,516.28/x
  3. Step 3: Cross multiply
    13,715.32x = 18,934.26 × 9,516.28
  4. Step 4: Simplify right side
    13,715.32x = 180,183,719.75
  5. Step 5: Solve for x
    x = 180,183,719.75/13,715.32
  6. Step 6: Final answer
    x = 13,137.41

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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.