Home / 7,628.09-10,532.89-6,131.21

Finding the Fourth Proportional to 7,628.09, 10,532.89 and 6,131.21

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Solution

The fourth proportional to 7,628.09, 10,532.89 and 6,131.21 is: 8,465.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.09 : 10,532.89 = 6,131.21 : x
  2. Step 2: Convert to fraction form
    7,628.09/10,532.89 = 6,131.21/x
  3. Step 3: Cross multiply
    7,628.09x = 10,532.89 × 6,131.21
  4. Step 4: Simplify right side
    7,628.09x = 64,579,360.50
  5. Step 5: Solve for x
    x = 64,579,360.50/7,628.09
  6. Step 6: Final answer
    x = 8,465.99

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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.