Home / 10,543.96-15,813.78-3,878.16

Finding the Fourth Proportional to 10,543.96, 15,813.78 and 3,878.16

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Solution

The fourth proportional to 10,543.96, 15,813.78 and 3,878.16 is: 5,816.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,543.96 : 15,813.78 = 3,878.16 : x
  2. Step 2: Convert to fraction form
    10,543.96/15,813.78 = 3,878.16/x
  3. Step 3: Cross multiply
    10,543.96x = 15,813.78 × 3,878.16
  4. Step 4: Simplify right side
    10,543.96x = 61,328,405.97
  5. Step 5: Solve for x
    x = 61,328,405.97/10,543.96
  6. Step 6: Final answer
    x = 5,816.45

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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.