Home / 10,355.40-15,509.72-4,797.06

Finding the Fourth Proportional to 10,355.40, 15,509.72 and 4,797.06

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Solution

The fourth proportional to 10,355.40, 15,509.72 and 4,797.06 is: 7,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.40 : 15,509.72 = 4,797.06 : x
  2. Step 2: Convert to fraction form
    10,355.40/15,509.72 = 4,797.06/x
  3. Step 3: Cross multiply
    10,355.40x = 15,509.72 × 4,797.06
  4. Step 4: Simplify right side
    10,355.40x = 74,401,033.44
  5. Step 5: Solve for x
    x = 74,401,033.44/10,355.40
  6. Step 6: Final answer
    x = 7,184.76

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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.