Home / 14,785.10-20,403.41-9,479.91

Finding the Fourth Proportional to 14,785.10, 20,403.41 and 9,479.91

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Solution

The fourth proportional to 14,785.10, 20,403.41 and 9,479.91 is: 13,082.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.10 : 20,403.41 = 9,479.91 : x
  2. Step 2: Convert to fraction form
    14,785.10/20,403.41 = 9,479.91/x
  3. Step 3: Cross multiply
    14,785.10x = 20,403.41 × 9,479.91
  4. Step 4: Simplify right side
    14,785.10x = 193,422,443.09
  5. Step 5: Solve for x
    x = 193,422,443.09/14,785.10
  6. Step 6: Final answer
    x = 13,082.26

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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.