Home / 10,029.79-13,840.57-5,491.60

Finding the Fourth Proportional to 10,029.79, 13,840.57 and 5,491.60

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Solution

The fourth proportional to 10,029.79, 13,840.57 and 5,491.60 is: 7,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,029.79 : 13,840.57 = 5,491.60 : x
  2. Step 2: Convert to fraction form
    10,029.79/13,840.57 = 5,491.60/x
  3. Step 3: Cross multiply
    10,029.79x = 13,840.57 × 5,491.60
  4. Step 4: Simplify right side
    10,029.79x = 76,006,846.48
  5. Step 5: Solve for x
    x = 76,006,846.48/10,029.79
  6. Step 6: Final answer
    x = 7,578.11

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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.