Home / 10,878.47-16,316.84-3,480.94

Finding the Fourth Proportional to 10,878.47, 16,316.84 and 3,480.94

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Solution

The fourth proportional to 10,878.47, 16,316.84 and 3,480.94 is: 5,221.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.47 : 16,316.84 = 3,480.94 : x
  2. Step 2: Convert to fraction form
    10,878.47/16,316.84 = 3,480.94/x
  3. Step 3: Cross multiply
    10,878.47x = 16,316.84 × 3,480.94
  4. Step 4: Simplify right side
    10,878.47x = 56,797,970.13
  5. Step 5: Solve for x
    x = 56,797,970.13/10,878.47
  6. Step 6: Final answer
    x = 5,221.14

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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.