Home / 9,348.45-12,900.78-5,099.60

Finding the Fourth Proportional to 9,348.45, 12,900.78 and 5,099.60

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Solution

The fourth proportional to 9,348.45, 12,900.78 and 5,099.60 is: 7,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,348.45 : 12,900.78 = 5,099.60 : x
  2. Step 2: Convert to fraction form
    9,348.45/12,900.78 = 5,099.60/x
  3. Step 3: Cross multiply
    9,348.45x = 12,900.78 × 5,099.60
  4. Step 4: Simplify right side
    9,348.45x = 65,788,753.18
  5. Step 5: Solve for x
    x = 65,788,753.18/9,348.45
  6. Step 6: Final answer
    x = 7,037.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.