Home / 13,453.30-18,565.77-7,485.04

Finding the Fourth Proportional to 13,453.30, 18,565.77 and 7,485.04

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Solution

The fourth proportional to 13,453.30, 18,565.77 and 7,485.04 is: 10,329.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.30 : 18,565.77 = 7,485.04 : x
  2. Step 2: Convert to fraction form
    13,453.30/18,565.77 = 7,485.04/x
  3. Step 3: Cross multiply
    13,453.30x = 18,565.77 × 7,485.04
  4. Step 4: Simplify right side
    13,453.30x = 138,965,531.08
  5. Step 5: Solve for x
    x = 138,965,531.08/13,453.30
  6. Step 6: Final answer
    x = 10,329.48

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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.