Home / 11,122.31-16,666.84-10,302.19

Finding the Fourth Proportional to 11,122.31, 16,666.84 and 10,302.19

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Solution

The fourth proportional to 11,122.31, 16,666.84 and 10,302.19 is: 15,437.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.31 : 16,666.84 = 10,302.19 : x
  2. Step 2: Convert to fraction form
    11,122.31/16,666.84 = 10,302.19/x
  3. Step 3: Cross multiply
    11,122.31x = 16,666.84 × 10,302.19
  4. Step 4: Simplify right side
    11,122.31x = 171,704,952.38
  5. Step 5: Solve for x
    x = 171,704,952.38/11,122.31
  6. Step 6: Final answer
    x = 15,437.89

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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.