Home / 13,097.43-18,073.44-7,720.32

Finding the Fourth Proportional to 13,097.43, 18,073.44 and 7,720.32

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Solution

The fourth proportional to 13,097.43, 18,073.44 and 7,720.32 is: 10,653.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,097.43 : 18,073.44 = 7,720.32 : x
  2. Step 2: Convert to fraction form
    13,097.43/18,073.44 = 7,720.32/x
  3. Step 3: Cross multiply
    13,097.43x = 18,073.44 × 7,720.32
  4. Step 4: Simplify right side
    13,097.43x = 139,532,740.30
  5. Step 5: Solve for x
    x = 139,532,740.30/13,097.43
  6. Step 6: Final answer
    x = 10,653.44

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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.