Home / 12,025.28-16,595.28-6,720.40

Finding the Fourth Proportional to 12,025.28, 16,595.28 and 6,720.40

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Solution

The fourth proportional to 12,025.28, 16,595.28 and 6,720.40 is: 9,274.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,025.28 : 16,595.28 = 6,720.40 : x
  2. Step 2: Convert to fraction form
    12,025.28/16,595.28 = 6,720.40/x
  3. Step 3: Cross multiply
    12,025.28x = 16,595.28 × 6,720.40
  4. Step 4: Simplify right side
    12,025.28x = 111,526,919.71
  5. Step 5: Solve for x
    x = 111,526,919.71/12,025.28
  6. Step 6: Final answer
    x = 9,274.37

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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.