Home / 10,385.63-14,332.12-5,669.90

Finding the Fourth Proportional to 10,385.63, 14,332.12 and 5,669.90

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Solution

The fourth proportional to 10,385.63, 14,332.12 and 5,669.90 is: 7,824.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.63 : 14,332.12 = 5,669.90 : x
  2. Step 2: Convert to fraction form
    10,385.63/14,332.12 = 5,669.90/x
  3. Step 3: Cross multiply
    10,385.63x = 14,332.12 × 5,669.90
  4. Step 4: Simplify right side
    10,385.63x = 81,261,601.35
  5. Step 5: Solve for x
    x = 81,261,601.35/10,385.63
  6. Step 6: Final answer
    x = 7,824.43

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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.