Home / 13,128.12-19,552.92-13,064.52

Finding the Fourth Proportional to 13,128.12, 19,552.92 and 13,064.52

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Solution

The fourth proportional to 13,128.12, 19,552.92 and 13,064.52 is: 19,458.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.12 : 19,552.92 = 13,064.52 : x
  2. Step 2: Convert to fraction form
    13,128.12/19,552.92 = 13,064.52/x
  3. Step 3: Cross multiply
    13,128.12x = 19,552.92 × 13,064.52
  4. Step 4: Simplify right side
    13,128.12x = 255,449,514.40
  5. Step 5: Solve for x
    x = 255,449,514.40/13,128.12
  6. Step 6: Final answer
    x = 19,458.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.