Home / 7,281.28-10,943.79-6,406.48

Finding the Fourth Proportional to 7,281.28, 10,943.79 and 6,406.48

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Solution

The fourth proportional to 7,281.28, 10,943.79 and 6,406.48 is: 9,628.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.28 : 10,943.79 = 6,406.48 : x
  2. Step 2: Convert to fraction form
    7,281.28/10,943.79 = 6,406.48/x
  3. Step 3: Cross multiply
    7,281.28x = 10,943.79 × 6,406.48
  4. Step 4: Simplify right side
    7,281.28x = 70,111,171.76
  5. Step 5: Solve for x
    x = 70,111,171.76/7,281.28
  6. Step 6: Final answer
    x = 9,628.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.