Home / 7,983.68-11,018.76-4,628.43

Finding the Fourth Proportional to 7,983.68, 11,018.76 and 4,628.43

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Solution

The fourth proportional to 7,983.68, 11,018.76 and 4,628.43 is: 6,387.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.68 : 11,018.76 = 4,628.43 : x
  2. Step 2: Convert to fraction form
    7,983.68/11,018.76 = 4,628.43/x
  3. Step 3: Cross multiply
    7,983.68x = 11,018.76 × 4,628.43
  4. Step 4: Simplify right side
    7,983.68x = 50,999,541.99
  5. Step 5: Solve for x
    x = 50,999,541.99/7,983.68
  6. Step 6: Final answer
    x = 6,387.98

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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.