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Finding the Fourth Proportional to 8,389.71, 12,584.95 and 5,935.50

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Solution

The fourth proportional to 8,389.71, 12,584.95 and 5,935.50 is: 8,903.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.71 : 12,584.95 = 5,935.50 : x
  2. Step 2: Convert to fraction form
    8,389.71/12,584.95 = 5,935.50/x
  3. Step 3: Cross multiply
    8,389.71x = 12,584.95 × 5,935.50
  4. Step 4: Simplify right side
    8,389.71x = 74,697,955.89
  5. Step 5: Solve for x
    x = 74,697,955.89/8,389.71
  6. Step 6: Final answer
    x = 8,903.52

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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.