Home / 18,430.21-27,642.46-6,740.70

Finding the Fourth Proportional to 18,430.21, 27,642.46 and 6,740.70

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Solution

The fourth proportional to 18,430.21, 27,642.46 and 6,740.70 is: 10,110.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.21 : 27,642.46 = 6,740.70 : x
  2. Step 2: Convert to fraction form
    18,430.21/27,642.46 = 6,740.70/x
  3. Step 3: Cross multiply
    18,430.21x = 27,642.46 × 6,740.70
  4. Step 4: Simplify right side
    18,430.21x = 186,329,530.12
  5. Step 5: Solve for x
    x = 186,329,530.12/18,430.21
  6. Step 6: Final answer
    x = 10,110.01

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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.