Home / 12,666.34-19,006.35-5,275.90

Finding the Fourth Proportional to 12,666.34, 19,006.35 and 5,275.90

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Solution

The fourth proportional to 12,666.34, 19,006.35 and 5,275.90 is: 7,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.34 : 19,006.35 = 5,275.90 : x
  2. Step 2: Convert to fraction form
    12,666.34/19,006.35 = 5,275.90/x
  3. Step 3: Cross multiply
    12,666.34x = 19,006.35 × 5,275.90
  4. Step 4: Simplify right side
    12,666.34x = 100,275,554.45
  5. Step 5: Solve for x
    x = 100,275,554.45/12,666.34
  6. Step 6: Final answer
    x = 7,916.70

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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.