Home / 13,753.05-18,979.25-7,465.43

Finding the Fourth Proportional to 13,753.05, 18,979.25 and 7,465.43

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Solution

The fourth proportional to 13,753.05, 18,979.25 and 7,465.43 is: 10,302.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.05 : 18,979.25 = 7,465.43 : x
  2. Step 2: Convert to fraction form
    13,753.05/18,979.25 = 7,465.43/x
  3. Step 3: Cross multiply
    13,753.05x = 18,979.25 × 7,465.43
  4. Step 4: Simplify right side
    13,753.05x = 141,688,130.10
  5. Step 5: Solve for x
    x = 141,688,130.10/13,753.05
  6. Step 6: Final answer
    x = 10,302.31

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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.