Home / 10,669.02-15,982.10-5,316.05

Finding the Fourth Proportional to 10,669.02, 15,982.10 and 5,316.05

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Solution

The fourth proportional to 10,669.02, 15,982.10 and 5,316.05 is: 7,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,669.02 : 15,982.10 = 5,316.05 : x
  2. Step 2: Convert to fraction form
    10,669.02/15,982.10 = 5,316.05/x
  3. Step 3: Cross multiply
    10,669.02x = 15,982.10 × 5,316.05
  4. Step 4: Simplify right side
    10,669.02x = 84,961,676.02
  5. Step 5: Solve for x
    x = 84,961,676.02/10,669.02
  6. Step 6: Final answer
    x = 7,963.40

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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.