Home / 10,320.28-14,245.62-6,128.50

Finding the Fourth Proportional to 10,320.28, 14,245.62 and 6,128.50

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Solution

The fourth proportional to 10,320.28, 14,245.62 and 6,128.50 is: 8,459.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.28 : 14,245.62 = 6,128.50 : x
  2. Step 2: Convert to fraction form
    10,320.28/14,245.62 = 6,128.50/x
  3. Step 3: Cross multiply
    10,320.28x = 14,245.62 × 6,128.50
  4. Step 4: Simplify right side
    10,320.28x = 87,304,282.17
  5. Step 5: Solve for x
    x = 87,304,282.17/10,320.28
  6. Step 6: Final answer
    x = 8,459.49

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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.