Home / 10,317.20-15,478.41-4,774.53

Finding the Fourth Proportional to 10,317.20, 15,478.41 and 4,774.53

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Solution

The fourth proportional to 10,317.20, 15,478.41 and 4,774.53 is: 7,163.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,317.20 : 15,478.41 = 4,774.53 : x
  2. Step 2: Convert to fraction form
    10,317.20/15,478.41 = 4,774.53/x
  3. Step 3: Cross multiply
    10,317.20x = 15,478.41 × 4,774.53
  4. Step 4: Simplify right side
    10,317.20x = 73,902,132.90
  5. Step 5: Solve for x
    x = 73,902,132.90/10,317.20
  6. Step 6: Final answer
    x = 7,163.01

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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.