Home / 12,884.79-19,294.37-8,488.92

Finding the Fourth Proportional to 12,884.79, 19,294.37 and 8,488.92

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Solution

The fourth proportional to 12,884.79, 19,294.37 and 8,488.92 is: 12,711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884.79 : 19,294.37 = 8,488.92 : x
  2. Step 2: Convert to fraction form
    12,884.79/19,294.37 = 8,488.92/x
  3. Step 3: Cross multiply
    12,884.79x = 19,294.37 × 8,488.92
  4. Step 4: Simplify right side
    12,884.79x = 163,788,316.59
  5. Step 5: Solve for x
    x = 163,788,316.59/12,884.79
  6. Step 6: Final answer
    x = 12,711.76

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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.