Home / 12,555.04-18,836.88-5,634.40

Finding the Fourth Proportional to 12,555.04, 18,836.88 and 5,634.40

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Solution

The fourth proportional to 12,555.04, 18,836.88 and 5,634.40 is: 8,453.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.04 : 18,836.88 = 5,634.40 : x
  2. Step 2: Convert to fraction form
    12,555.04/18,836.88 = 5,634.40/x
  3. Step 3: Cross multiply
    12,555.04x = 18,836.88 × 5,634.40
  4. Step 4: Simplify right side
    12,555.04x = 106,134,516.67
  5. Step 5: Solve for x
    x = 106,134,516.67/12,555.04
  6. Step 6: Final answer
    x = 8,453.54

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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.