Home / 18,230.11-27,345.13-7,129.01

Finding the Fourth Proportional to 18,230.11, 27,345.13 and 7,129.01

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Solution

The fourth proportional to 18,230.11, 27,345.13 and 7,129.01 is: 10,693.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,230.11 : 27,345.13 = 7,129.01 : x
  2. Step 2: Convert to fraction form
    18,230.11/27,345.13 = 7,129.01/x
  3. Step 3: Cross multiply
    18,230.11x = 27,345.13 × 7,129.01
  4. Step 4: Simplify right side
    18,230.11x = 194,943,785.84
  5. Step 5: Solve for x
    x = 194,943,785.84/18,230.11
  6. Step 6: Final answer
    x = 10,693.50

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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.