Home / 18,513.21-25,547.97-10,555.56

Finding the Fourth Proportional to 18,513.21, 25,547.97 and 10,555.56

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Solution

The fourth proportional to 18,513.21, 25,547.97 and 10,555.56 is: 14,566.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.21 : 25,547.97 = 10,555.56 : x
  2. Step 2: Convert to fraction form
    18,513.21/25,547.97 = 10,555.56/x
  3. Step 3: Cross multiply
    18,513.21x = 25,547.97 × 10,555.56
  4. Step 4: Simplify right side
    18,513.21x = 269,673,130.21
  5. Step 5: Solve for x
    x = 269,673,130.21/18,513.21
  6. Step 6: Final answer
    x = 14,566.52

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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.