Home / 18,710.69-25,825.98-11,154.60

Finding the Fourth Proportional to 18,710.69, 25,825.98 and 11,154.60

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Solution

The fourth proportional to 18,710.69, 25,825.98 and 11,154.60 is: 15,396.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.69 : 25,825.98 = 11,154.60 : x
  2. Step 2: Convert to fraction form
    18,710.69/25,825.98 = 11,154.60/x
  3. Step 3: Cross multiply
    18,710.69x = 25,825.98 × 11,154.60
  4. Step 4: Simplify right side
    18,710.69x = 288,078,476.51
  5. Step 5: Solve for x
    x = 288,078,476.51/18,710.69
  6. Step 6: Final answer
    x = 15,396.47

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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.