Home / 10,539.28-15,808.56-4,995.28

Finding the Fourth Proportional to 10,539.28, 15,808.56 and 4,995.28

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Solution

The fourth proportional to 10,539.28, 15,808.56 and 4,995.28 is: 7,492.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,539.28 : 15,808.56 = 4,995.28 : x
  2. Step 2: Convert to fraction form
    10,539.28/15,808.56 = 4,995.28/x
  3. Step 3: Cross multiply
    10,539.28x = 15,808.56 × 4,995.28
  4. Step 4: Simplify right side
    10,539.28x = 78,968,183.60
  5. Step 5: Solve for x
    x = 78,968,183.60/10,539.28
  6. Step 6: Final answer
    x = 7,492.75

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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.