Home / 10,385.21-14,331.39-5,669.53

Finding the Fourth Proportional to 10,385.21, 14,331.39 and 5,669.53

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Solution

The fourth proportional to 10,385.21, 14,331.39 and 5,669.53 is: 7,823.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.21 : 14,331.39 = 5,669.53 : x
  2. Step 2: Convert to fraction form
    10,385.21/14,331.39 = 5,669.53/x
  3. Step 3: Cross multiply
    10,385.21x = 14,331.39 × 5,669.53
  4. Step 4: Simplify right side
    10,385.21x = 81,252,245.55
  5. Step 5: Solve for x
    x = 81,252,245.55/10,385.21
  6. Step 6: Final answer
    x = 7,823.84

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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.