Home / 13,172.76-19,756.15-3,810.68

Finding the Fourth Proportional to 13,172.76, 19,756.15 and 3,810.68

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Solution

The fourth proportional to 13,172.76, 19,756.15 and 3,810.68 is: 5,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.76 : 19,756.15 = 3,810.68 : x
  2. Step 2: Convert to fraction form
    13,172.76/19,756.15 = 3,810.68/x
  3. Step 3: Cross multiply
    13,172.76x = 19,756.15 × 3,810.68
  4. Step 4: Simplify right side
    13,172.76x = 75,284,331.46
  5. Step 5: Solve for x
    x = 75,284,331.46/13,172.76
  6. Step 6: Final answer
    x = 5,715.15

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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.