Home / 10,938.90-16,412.40-3,543.60

Finding the Fourth Proportional to 10,938.90, 16,412.40 and 3,543.60

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Solution

The fourth proportional to 10,938.90, 16,412.40 and 3,543.60 is: 5,316.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938.90 : 16,412.40 = 3,543.60 : x
  2. Step 2: Convert to fraction form
    10,938.90/16,412.40 = 3,543.60/x
  3. Step 3: Cross multiply
    10,938.90x = 16,412.40 × 3,543.60
  4. Step 4: Simplify right side
    10,938.90x = 58,158,980.64
  5. Step 5: Solve for x
    x = 58,158,980.64/10,938.90
  6. Step 6: Final answer
    x = 5,316.71

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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.