Home / 13,585.35-18,747.79-7,617.02

Finding the Fourth Proportional to 13,585.35, 18,747.79 and 7,617.02

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Solution

The fourth proportional to 13,585.35, 18,747.79 and 7,617.02 is: 10,511.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.35 : 18,747.79 = 7,617.02 : x
  2. Step 2: Convert to fraction form
    13,585.35/18,747.79 = 7,617.02/x
  3. Step 3: Cross multiply
    13,585.35x = 18,747.79 × 7,617.02
  4. Step 4: Simplify right side
    13,585.35x = 142,802,284.06
  5. Step 5: Solve for x
    x = 142,802,284.06/13,585.35
  6. Step 6: Final answer
    x = 10,511.49

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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.