Home / 10,907.09-15,045.05-7,764.29

Finding the Fourth Proportional to 10,907.09, 15,045.05 and 7,764.29

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Solution

The fourth proportional to 10,907.09, 15,045.05 and 7,764.29 is: 10,709.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,907.09 : 15,045.05 = 7,764.29 : x
  2. Step 2: Convert to fraction form
    10,907.09/15,045.05 = 7,764.29/x
  3. Step 3: Cross multiply
    10,907.09x = 15,045.05 × 7,764.29
  4. Step 4: Simplify right side
    10,907.09x = 116,814,092.44
  5. Step 5: Solve for x
    x = 116,814,092.44/10,907.09
  6. Step 6: Final answer
    x = 10,709.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.