Home / 13,904.68-20,856.48-5,582.20

Finding the Fourth Proportional to 13,904.68, 20,856.48 and 5,582.20

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Solution

The fourth proportional to 13,904.68, 20,856.48 and 5,582.20 is: 8,373.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.68 : 20,856.48 = 5,582.20 : x
  2. Step 2: Convert to fraction form
    13,904.68/20,856.48 = 5,582.20/x
  3. Step 3: Cross multiply
    13,904.68x = 20,856.48 × 5,582.20
  4. Step 4: Simplify right side
    13,904.68x = 116,425,042.66
  5. Step 5: Solve for x
    x = 116,425,042.66/13,904.68
  6. Step 6: Final answer
    x = 8,373.08

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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.