Home / 10,385.14-14,331.45-5,669.41

Finding the Fourth Proportional to 10,385.14, 14,331.45 and 5,669.41

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Solution

The fourth proportional to 10,385.14, 14,331.45 and 5,669.41 is: 7,823.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.14 : 14,331.45 = 5,669.41 : x
  2. Step 2: Convert to fraction form
    10,385.14/14,331.45 = 5,669.41/x
  3. Step 3: Cross multiply
    10,385.14x = 14,331.45 × 5,669.41
  4. Step 4: Simplify right side
    10,385.14x = 81,250,865.94
  5. Step 5: Solve for x
    x = 81,250,865.94/10,385.14
  6. Step 6: Final answer
    x = 7,823.76

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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.