Home / 18,979.55-28,468.47-6,500.69

Finding the Fourth Proportional to 18,979.55, 28,468.47 and 6,500.69

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Solution

The fourth proportional to 18,979.55, 28,468.47 and 6,500.69 is: 9,750.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979.55 : 28,468.47 = 6,500.69 : x
  2. Step 2: Convert to fraction form
    18,979.55/28,468.47 = 6,500.69/x
  3. Step 3: Cross multiply
    18,979.55x = 28,468.47 × 6,500.69
  4. Step 4: Simplify right side
    18,979.55x = 185,064,698.24
  5. Step 5: Solve for x
    x = 185,064,698.24/18,979.55
  6. Step 6: Final answer
    x = 9,750.74

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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.