Home / 12,547.24-18,821.82-3,313

Finding the Fourth Proportional to 12,547.24, 18,821.82 and 3,313

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Solution

The fourth proportional to 12,547.24, 18,821.82 and 3,313 is: 4,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.24 : 18,821.82 = 3,313 : x
  2. Step 2: Convert to fraction form
    12,547.24/18,821.82 = 3,313/x
  3. Step 3: Cross multiply
    12,547.24x = 18,821.82 × 3,313
  4. Step 4: Simplify right side
    12,547.24x = 62,356,689.66
  5. Step 5: Solve for x
    x = 62,356,689.66/12,547.24
  6. Step 6: Final answer
    x = 4,969.75

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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.