Home / 10,491.26-14,478.75-5,776.38

Finding the Fourth Proportional to 10,491.26, 14,478.75 and 5,776.38

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Solution

The fourth proportional to 10,491.26, 14,478.75 and 5,776.38 is: 7,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.26 : 14,478.75 = 5,776.38 : x
  2. Step 2: Convert to fraction form
    10,491.26/14,478.75 = 5,776.38/x
  3. Step 3: Cross multiply
    10,491.26x = 14,478.75 × 5,776.38
  4. Step 4: Simplify right side
    10,491.26x = 83,634,761.93
  5. Step 5: Solve for x
    x = 83,634,761.93/10,491.26
  6. Step 6: Final answer
    x = 7,971.85

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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.