Home / 13,859.19-20,800.58-5,545.08

Finding the Fourth Proportional to 13,859.19, 20,800.58 and 5,545.08

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Solution

The fourth proportional to 13,859.19, 20,800.58 and 5,545.08 is: 8,322.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.19 : 20,800.58 = 5,545.08 : x
  2. Step 2: Convert to fraction form
    13,859.19/20,800.58 = 5,545.08/x
  3. Step 3: Cross multiply
    13,859.19x = 20,800.58 × 5,545.08
  4. Step 4: Simplify right side
    13,859.19x = 115,340,852.42
  5. Step 5: Solve for x
    x = 115,340,852.42/13,859.19
  6. Step 6: Final answer
    x = 8,322.34

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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.