Home / 18,212.85-27,303.08-7,117.02

Finding the Fourth Proportional to 18,212.85, 27,303.08 and 7,117.02

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Solution

The fourth proportional to 18,212.85, 27,303.08 and 7,117.02 is: 10,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.85 : 27,303.08 = 7,117.02 : x
  2. Step 2: Convert to fraction form
    18,212.85/27,303.08 = 7,117.02/x
  3. Step 3: Cross multiply
    18,212.85x = 27,303.08 × 7,117.02
  4. Step 4: Simplify right side
    18,212.85x = 194,316,530.84
  5. Step 5: Solve for x
    x = 194,316,530.84/18,212.85
  6. Step 6: Final answer
    x = 10,669.20

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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.