Home / 10,920.48-16,371.68-4,253.68

Finding the Fourth Proportional to 10,920.48, 16,371.68 and 4,253.68

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Solution

The fourth proportional to 10,920.48, 16,371.68 and 4,253.68 is: 6,377.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920.48 : 16,371.68 = 4,253.68 : x
  2. Step 2: Convert to fraction form
    10,920.48/16,371.68 = 4,253.68/x
  3. Step 3: Cross multiply
    10,920.48x = 16,371.68 × 4,253.68
  4. Step 4: Simplify right side
    10,920.48x = 69,639,887.78
  5. Step 5: Solve for x
    x = 69,639,887.78/10,920.48
  6. Step 6: Final answer
    x = 6,377.00

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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.