Home / 13,587.24-20,383.78-4,227.08

Finding the Fourth Proportional to 13,587.24, 20,383.78 and 4,227.08

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Solution

The fourth proportional to 13,587.24, 20,383.78 and 4,227.08 is: 6,341.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.24 : 20,383.78 = 4,227.08 : x
  2. Step 2: Convert to fraction form
    13,587.24/20,383.78 = 4,227.08/x
  3. Step 3: Cross multiply
    13,587.24x = 20,383.78 × 4,227.08
  4. Step 4: Simplify right side
    13,587.24x = 86,163,868.76
  5. Step 5: Solve for x
    x = 86,163,868.76/13,587.24
  6. Step 6: Final answer
    x = 6,341.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.