Home / 13,069.11-18,035.49-7,100.91

Finding the Fourth Proportional to 13,069.11, 18,035.49 and 7,100.91

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Solution

The fourth proportional to 13,069.11, 18,035.49 and 7,100.91 is: 9,799.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069.11 : 18,035.49 = 7,100.91 : x
  2. Step 2: Convert to fraction form
    13,069.11/18,035.49 = 7,100.91/x
  3. Step 3: Cross multiply
    13,069.11x = 18,035.49 × 7,100.91
  4. Step 4: Simplify right side
    13,069.11x = 128,068,391.30
  5. Step 5: Solve for x
    x = 128,068,391.30/13,069.11
  6. Step 6: Final answer
    x = 9,799.32

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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.