Home / 13,151.21-19,715.07-4,829.30

Finding the Fourth Proportional to 13,151.21, 19,715.07 and 4,829.30

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Solution

The fourth proportional to 13,151.21, 19,715.07 and 4,829.30 is: 7,239.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.21 : 19,715.07 = 4,829.30 : x
  2. Step 2: Convert to fraction form
    13,151.21/19,715.07 = 4,829.30/x
  3. Step 3: Cross multiply
    13,151.21x = 19,715.07 × 4,829.30
  4. Step 4: Simplify right side
    13,151.21x = 95,209,888.98
  5. Step 5: Solve for x
    x = 95,209,888.98/13,151.21
  6. Step 6: Final answer
    x = 7,239.63

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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.