Home / 10,756.28-14,835.45-7,781.96

Finding the Fourth Proportional to 10,756.28, 14,835.45 and 7,781.96

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Solution

The fourth proportional to 10,756.28, 14,835.45 and 7,781.96 is: 10,733.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,756.28 : 14,835.45 = 7,781.96 : x
  2. Step 2: Convert to fraction form
    10,756.28/14,835.45 = 7,781.96/x
  3. Step 3: Cross multiply
    10,756.28x = 14,835.45 × 7,781.96
  4. Step 4: Simplify right side
    10,756.28x = 115,448,765.39
  5. Step 5: Solve for x
    x = 115,448,765.39/10,756.28
  6. Step 6: Final answer
    x = 10,733.15

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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.