Home / 18,291.69-27,434.43-5,140.97

Finding the Fourth Proportional to 18,291.69, 27,434.43 and 5,140.97

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Solution

The fourth proportional to 18,291.69, 27,434.43 and 5,140.97 is: 7,710.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.69 : 27,434.43 = 5,140.97 : x
  2. Step 2: Convert to fraction form
    18,291.69/27,434.43 = 5,140.97/x
  3. Step 3: Cross multiply
    18,291.69x = 27,434.43 × 5,140.97
  4. Step 4: Simplify right side
    18,291.69x = 141,039,547.30
  5. Step 5: Solve for x
    x = 141,039,547.30/18,291.69
  6. Step 6: Final answer
    x = 7,710.58

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1.5x scale

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.