Home / 9,415.53-14,103.19-4,959.15

Finding the Fourth Proportional to 9,415.53, 14,103.19 and 4,959.15

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Solution

The fourth proportional to 9,415.53, 14,103.19 and 4,959.15 is: 7,428.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,415.53 : 14,103.19 = 4,959.15 : x
  2. Step 2: Convert to fraction form
    9,415.53/14,103.19 = 4,959.15/x
  3. Step 3: Cross multiply
    9,415.53x = 14,103.19 × 4,959.15
  4. Step 4: Simplify right side
    9,415.53x = 69,939,834.69
  5. Step 5: Solve for x
    x = 69,939,834.69/9,415.53
  6. Step 6: Final answer
    x = 7,428.14

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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.