Home / 13,118.17-18,109.99-10,537.97

Finding the Fourth Proportional to 13,118.17, 18,109.99 and 10,537.97

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Solution

The fourth proportional to 13,118.17, 18,109.99 and 10,537.97 is: 14,547.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.17 : 18,109.99 = 10,537.97 : x
  2. Step 2: Convert to fraction form
    13,118.17/18,109.99 = 10,537.97/x
  3. Step 3: Cross multiply
    13,118.17x = 18,109.99 × 10,537.97
  4. Step 4: Simplify right side
    13,118.17x = 190,842,414.43
  5. Step 5: Solve for x
    x = 190,842,414.43/13,118.17
  6. Step 6: Final answer
    x = 14,547.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.