Home / 18,021.12-27,041.40-9,707.28

Finding the Fourth Proportional to 18,021.12, 27,041.40 and 9,707.28

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Solution

The fourth proportional to 18,021.12, 27,041.40 and 9,707.28 is: 14,566.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.12 : 27,041.40 = 9,707.28 : x
  2. Step 2: Convert to fraction form
    18,021.12/27,041.40 = 9,707.28/x
  3. Step 3: Cross multiply
    18,021.12x = 27,041.40 × 9,707.28
  4. Step 4: Simplify right side
    18,021.12x = 262,498,441.39
  5. Step 5: Solve for x
    x = 262,498,441.39/18,021.12
  6. Step 6: Final answer
    x = 14,566.16

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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.