Home / 10,579.36-15,851.76-6,671.20

Finding the Fourth Proportional to 10,579.36, 15,851.76 and 6,671.20

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Solution

The fourth proportional to 10,579.36, 15,851.76 and 6,671.20 is: 9,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.36 : 15,851.76 = 6,671.20 : x
  2. Step 2: Convert to fraction form
    10,579.36/15,851.76 = 6,671.20/x
  3. Step 3: Cross multiply
    10,579.36x = 15,851.76 × 6,671.20
  4. Step 4: Simplify right side
    10,579.36x = 105,750,261.31
  5. Step 5: Solve for x
    x = 105,750,261.31/10,579.36
  6. Step 6: Final answer
    x = 9,995.90

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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.