Home / 19,122.64-28,666.68-6,807.76

Finding the Fourth Proportional to 19,122.64, 28,666.68 and 6,807.76

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Solution

The fourth proportional to 19,122.64, 28,666.68 and 6,807.76 is: 10,205.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122.64 : 28,666.68 = 6,807.76 : x
  2. Step 2: Convert to fraction form
    19,122.64/28,666.68 = 6,807.76/x
  3. Step 3: Cross multiply
    19,122.64x = 28,666.68 × 6,807.76
  4. Step 4: Simplify right side
    19,122.64x = 195,155,877.44
  5. Step 5: Solve for x
    x = 195,155,877.44/19,122.64
  6. Step 6: Final answer
    x = 10,205.49

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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.