Home / 13,009.80-19,514.70-12,088.20

Finding the Fourth Proportional to 13,009.80, 19,514.70 and 12,088.20

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Solution

The fourth proportional to 13,009.80, 19,514.70 and 12,088.20 is: 18,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.80 : 19,514.70 = 12,088.20 : x
  2. Step 2: Convert to fraction form
    13,009.80/19,514.70 = 12,088.20/x
  3. Step 3: Cross multiply
    13,009.80x = 19,514.70 × 12,088.20
  4. Step 4: Simplify right side
    13,009.80x = 235,897,596.54
  5. Step 5: Solve for x
    x = 235,897,596.54/13,009.80
  6. Step 6: Final answer
    x = 18,132.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.