Home / 9,919.79-14,880.18-3,255.69

Finding the Fourth Proportional to 9,919.79, 14,880.18 and 3,255.69

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Solution

The fourth proportional to 9,919.79, 14,880.18 and 3,255.69 is: 4,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.79 : 14,880.18 = 3,255.69 : x
  2. Step 2: Convert to fraction form
    9,919.79/14,880.18 = 3,255.69/x
  3. Step 3: Cross multiply
    9,919.79x = 14,880.18 × 3,255.69
  4. Step 4: Simplify right side
    9,919.79x = 48,445,253.22
  5. Step 5: Solve for x
    x = 48,445,253.22/9,919.79
  6. Step 6: Final answer
    x = 4,883.70

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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.