Home / 17,339.12-23,899.68-13,555.60

Finding the Fourth Proportional to 17,339.12, 23,899.68 and 13,555.60

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Solution

The fourth proportional to 17,339.12, 23,899.68 and 13,555.60 is: 18,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,339.12 : 23,899.68 = 13,555.60 : x
  2. Step 2: Convert to fraction form
    17,339.12/23,899.68 = 13,555.60/x
  3. Step 3: Cross multiply
    17,339.12x = 23,899.68 × 13,555.60
  4. Step 4: Simplify right side
    17,339.12x = 323,974,502.21
  5. Step 5: Solve for x
    x = 323,974,502.21/17,339.12
  6. Step 6: Final answer
    x = 18,684.60

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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.