Home / 11,547.36-17,320.80-4,620

Finding the Fourth Proportional to 11,547.36, 17,320.80 and 4,620

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Solution

The fourth proportional to 11,547.36, 17,320.80 and 4,620 is: 6,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,547.36 : 17,320.80 = 4,620 : x
  2. Step 2: Convert to fraction form
    11,547.36/17,320.80 = 4,620/x
  3. Step 3: Cross multiply
    11,547.36x = 17,320.80 × 4,620
  4. Step 4: Simplify right side
    11,547.36x = 80,022,096
  5. Step 5: Solve for x
    x = 80,022,096/11,547.36
  6. Step 6: Final answer
    x = 6,929.90

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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.