Home / 13,763.39-18,993.10-7,475.77

Finding the Fourth Proportional to 13,763.39, 18,993.10 and 7,475.77

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Solution

The fourth proportional to 13,763.39, 18,993.10 and 7,475.77 is: 10,316.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.39 : 18,993.10 = 7,475.77 : x
  2. Step 2: Convert to fraction form
    13,763.39/18,993.10 = 7,475.77/x
  3. Step 3: Cross multiply
    13,763.39x = 18,993.10 × 7,475.77
  4. Step 4: Simplify right side
    13,763.39x = 141,987,914.84
  5. Step 5: Solve for x
    x = 141,987,914.84/13,763.39
  6. Step 6: Final answer
    x = 10,316.35

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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.