Home / 11,865.39-16,374.29-6,487.94

Finding the Fourth Proportional to 11,865.39, 16,374.29 and 6,487.94

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Solution

The fourth proportional to 11,865.39, 16,374.29 and 6,487.94 is: 8,953.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.39 : 16,374.29 = 6,487.94 : x
  2. Step 2: Convert to fraction form
    11,865.39/16,374.29 = 6,487.94/x
  3. Step 3: Cross multiply
    11,865.39x = 16,374.29 × 6,487.94
  4. Step 4: Simplify right side
    11,865.39x = 106,235,411.06
  5. Step 5: Solve for x
    x = 106,235,411.06/11,865.39
  6. Step 6: Final answer
    x = 8,953.39

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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.