Home / 12,576.20-18,864.93-4,785.62

Finding the Fourth Proportional to 12,576.20, 18,864.93 and 4,785.62

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Solution

The fourth proportional to 12,576.20, 18,864.93 and 4,785.62 is: 7,178.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.20 : 18,864.93 = 4,785.62 : x
  2. Step 2: Convert to fraction form
    12,576.20/18,864.93 = 4,785.62/x
  3. Step 3: Cross multiply
    12,576.20x = 18,864.93 × 4,785.62
  4. Step 4: Simplify right side
    12,576.20x = 90,280,327.18
  5. Step 5: Solve for x
    x = 90,280,327.18/12,576.20
  6. Step 6: Final answer
    x = 7,178.67

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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.