Home / 10,385.64-14,332.20-6,659.64

Finding the Fourth Proportional to 10,385.64, 14,332.20 and 6,659.64

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Solution

The fourth proportional to 10,385.64, 14,332.20 and 6,659.64 is: 9,190.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.64 : 14,332.20 = 6,659.64 : x
  2. Step 2: Convert to fraction form
    10,385.64/14,332.20 = 6,659.64/x
  3. Step 3: Cross multiply
    10,385.64x = 14,332.20 × 6,659.64
  4. Step 4: Simplify right side
    10,385.64x = 95,447,292.41
  5. Step 5: Solve for x
    x = 95,447,292.41/10,385.64
  6. Step 6: Final answer
    x = 9,190.31

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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.