Home / 8,618.24-12,915.83-4,607.39

Finding the Fourth Proportional to 8,618.24, 12,915.83 and 4,607.39

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Solution

The fourth proportional to 8,618.24, 12,915.83 and 4,607.39 is: 6,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.24 : 12,915.83 = 4,607.39 : x
  2. Step 2: Convert to fraction form
    8,618.24/12,915.83 = 4,607.39/x
  3. Step 3: Cross multiply
    8,618.24x = 12,915.83 × 4,607.39
  4. Step 4: Simplify right side
    8,618.24x = 59,508,309.79
  5. Step 5: Solve for x
    x = 59,508,309.79/8,618.24
  6. Step 6: Final answer
    x = 6,904.92

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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.