Home / 13,587.37-18,748.73-7,618.68

Finding the Fourth Proportional to 13,587.37, 18,748.73 and 7,618.68

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Solution

The fourth proportional to 13,587.37, 18,748.73 and 7,618.68 is: 10,512.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.37 : 18,748.73 = 7,618.68 : x
  2. Step 2: Convert to fraction form
    13,587.37/18,748.73 = 7,618.68/x
  3. Step 3: Cross multiply
    13,587.37x = 18,748.73 × 7,618.68
  4. Step 4: Simplify right side
    13,587.37x = 142,840,593.32
  5. Step 5: Solve for x
    x = 142,840,593.32/13,587.37
  6. Step 6: Final answer
    x = 10,512.75

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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.