Home / 12,180.68-18,302.90-10,624.56

Finding the Fourth Proportional to 12,180.68, 18,302.90 and 10,624.56

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Solution

The fourth proportional to 12,180.68, 18,302.90 and 10,624.56 is: 15,964.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.68 : 18,302.90 = 10,624.56 : x
  2. Step 2: Convert to fraction form
    12,180.68/18,302.90 = 10,624.56/x
  3. Step 3: Cross multiply
    12,180.68x = 18,302.90 × 10,624.56
  4. Step 4: Simplify right side
    12,180.68x = 194,460,206.10
  5. Step 5: Solve for x
    x = 194,460,206.10/12,180.68
  6. Step 6: Final answer
    x = 15,964.65

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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.