Home / 15,480.04-21,373.30-13,673.72

Finding the Fourth Proportional to 15,480.04, 21,373.30 and 13,673.72

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Solution

The fourth proportional to 15,480.04, 21,373.30 and 13,673.72 is: 18,879.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480.04 : 21,373.30 = 13,673.72 : x
  2. Step 2: Convert to fraction form
    15,480.04/21,373.30 = 13,673.72/x
  3. Step 3: Cross multiply
    15,480.04x = 21,373.30 × 13,673.72
  4. Step 4: Simplify right side
    15,480.04x = 292,252,519.68
  5. Step 5: Solve for x
    x = 292,252,519.68/15,480.04
  6. Step 6: Final answer
    x = 18,879.31

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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.