Home / 12,164.65-18,238.87-4,372.45

Finding the Fourth Proportional to 12,164.65, 18,238.87 and 4,372.45

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Solution

The fourth proportional to 12,164.65, 18,238.87 and 4,372.45 is: 6,555.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,164.65 : 18,238.87 = 4,372.45 : x
  2. Step 2: Convert to fraction form
    12,164.65/18,238.87 = 4,372.45/x
  3. Step 3: Cross multiply
    12,164.65x = 18,238.87 × 4,372.45
  4. Step 4: Simplify right side
    12,164.65x = 79,748,434.07
  5. Step 5: Solve for x
    x = 79,748,434.07/12,164.65
  6. Step 6: Final answer
    x = 6,555.76

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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.