Home / 13,715.04-18,926.75-7,427.41

Finding the Fourth Proportional to 13,715.04, 18,926.75 and 7,427.41

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Solution

The fourth proportional to 13,715.04, 18,926.75 and 7,427.41 is: 10,249.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.04 : 18,926.75 = 7,427.41 : x
  2. Step 2: Convert to fraction form
    13,715.04/18,926.75 = 7,427.41/x
  3. Step 3: Cross multiply
    13,715.04x = 18,926.75 × 7,427.41
  4. Step 4: Simplify right side
    13,715.04x = 140,576,732.22
  5. Step 5: Solve for x
    x = 140,576,732.22/13,715.04
  6. Step 6: Final answer
    x = 10,249.82

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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.