Home / 7,547.36-11,321.76-2,930.72

Finding the Fourth Proportional to 7,547.36, 11,321.76 and 2,930.72

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Solution

The fourth proportional to 7,547.36, 11,321.76 and 2,930.72 is: 4,396.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.36 : 11,321.76 = 2,930.72 : x
  2. Step 2: Convert to fraction form
    7,547.36/11,321.76 = 2,930.72/x
  3. Step 3: Cross multiply
    7,547.36x = 11,321.76 × 2,930.72
  4. Step 4: Simplify right side
    7,547.36x = 33,180,908.47
  5. Step 5: Solve for x
    x = 33,180,908.47/7,547.36
  6. Step 6: Final answer
    x = 4,396.36

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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.