Home / 14,499.60-20,009.28-8,212.20

Finding the Fourth Proportional to 14,499.60, 20,009.28 and 8,212.20

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Solution

The fourth proportional to 14,499.60, 20,009.28 and 8,212.20 is: 11,332.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,499.60 : 20,009.28 = 8,212.20 : x
  2. Step 2: Convert to fraction form
    14,499.60/20,009.28 = 8,212.20/x
  3. Step 3: Cross multiply
    14,499.60x = 20,009.28 × 8,212.20
  4. Step 4: Simplify right side
    14,499.60x = 164,320,209.22
  5. Step 5: Solve for x
    x = 164,320,209.22/14,499.60
  6. Step 6: Final answer
    x = 11,332.74

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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.