Home / 12,666.40-19,006.44-5,275.96

Finding the Fourth Proportional to 12,666.40, 19,006.44 and 5,275.96

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Solution

The fourth proportional to 12,666.40, 19,006.44 and 5,275.96 is: 7,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.40 : 19,006.44 = 5,275.96 : x
  2. Step 2: Convert to fraction form
    12,666.40/19,006.44 = 5,275.96/x
  3. Step 3: Cross multiply
    12,666.40x = 19,006.44 × 5,275.96
  4. Step 4: Simplify right side
    12,666.40x = 100,277,217.18
  5. Step 5: Solve for x
    x = 100,277,217.18/12,666.40
  6. Step 6: Final answer
    x = 7,916.79

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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.