Home / 10,640.49-14,684.48-6,392.85

Finding the Fourth Proportional to 10,640.49, 14,684.48 and 6,392.85

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Solution

The fourth proportional to 10,640.49, 14,684.48 and 6,392.85 is: 8,822.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.49 : 14,684.48 = 6,392.85 : x
  2. Step 2: Convert to fraction form
    10,640.49/14,684.48 = 6,392.85/x
  3. Step 3: Cross multiply
    10,640.49x = 14,684.48 × 6,392.85
  4. Step 4: Simplify right side
    10,640.49x = 93,875,677.97
  5. Step 5: Solve for x
    x = 93,875,677.97/10,640.49
  6. Step 6: Final answer
    x = 8,822.50

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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.