Home / 18,515.26-25,551.75-10,557.28

Finding the Fourth Proportional to 18,515.26, 25,551.75 and 10,557.28

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Solution

The fourth proportional to 18,515.26, 25,551.75 and 10,557.28 is: 14,569.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.26 : 25,551.75 = 10,557.28 : x
  2. Step 2: Convert to fraction form
    18,515.26/25,551.75 = 10,557.28/x
  3. Step 3: Cross multiply
    18,515.26x = 25,551.75 × 10,557.28
  4. Step 4: Simplify right side
    18,515.26x = 269,756,979.24
  5. Step 5: Solve for x
    x = 269,756,979.24/18,515.26
  6. Step 6: Final answer
    x = 14,569.44

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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.