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Finding the Fourth Proportional to 6,339.55, 8,889.95 and 6,339.55

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Solution

The fourth proportional to 6,339.55, 8,889.95 and 6,339.55 is: 8,889.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339.55 : 8,889.95 = 6,339.55 : x
  2. Step 2: Convert to fraction form
    6,339.55/8,889.95 = 6,339.55/x
  3. Step 3: Cross multiply
    6,339.55x = 8,889.95 × 6,339.55
  4. Step 4: Simplify right side
    6,339.55x = 56,358,282.52
  5. Step 5: Solve for x
    x = 56,358,282.52/6,339.55
  6. Step 6: Final answer
    x = 8,889.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.