Home / 12,099.08-18,148.80-4,307.70

Finding the Fourth Proportional to 12,099.08, 18,148.80 and 4,307.70

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Solution

The fourth proportional to 12,099.08, 18,148.80 and 4,307.70 is: 6,461.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099.08 : 18,148.80 = 4,307.70 : x
  2. Step 2: Convert to fraction form
    12,099.08/18,148.80 = 4,307.70/x
  3. Step 3: Cross multiply
    12,099.08x = 18,148.80 × 4,307.70
  4. Step 4: Simplify right side
    12,099.08x = 78,179,585.76
  5. Step 5: Solve for x
    x = 78,179,585.76/12,099.08
  6. Step 6: Final answer
    x = 6,461.61

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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.