Home / 10,331.44-15,484.80-4,777.20

Finding the Fourth Proportional to 10,331.44, 15,484.80 and 4,777.20

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Solution

The fourth proportional to 10,331.44, 15,484.80 and 4,777.20 is: 7,160.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.44 : 15,484.80 = 4,777.20 : x
  2. Step 2: Convert to fraction form
    10,331.44/15,484.80 = 4,777.20/x
  3. Step 3: Cross multiply
    10,331.44x = 15,484.80 × 4,777.20
  4. Step 4: Simplify right side
    10,331.44x = 73,973,986.56
  5. Step 5: Solve for x
    x = 73,973,986.56/10,331.44
  6. Step 6: Final answer
    x = 7,160.08

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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.