Home / 13,856.08-20,784.12-6,465.72

Finding the Fourth Proportional to 13,856.08, 20,784.12 and 6,465.72

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Solution

The fourth proportional to 13,856.08, 20,784.12 and 6,465.72 is: 9,698.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.08 : 20,784.12 = 6,465.72 : x
  2. Step 2: Convert to fraction form
    13,856.08/20,784.12 = 6,465.72/x
  3. Step 3: Cross multiply
    13,856.08x = 20,784.12 × 6,465.72
  4. Step 4: Simplify right side
    13,856.08x = 134,384,300.37
  5. Step 5: Solve for x
    x = 134,384,300.37/13,856.08
  6. Step 6: Final answer
    x = 9,698.58

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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.