Home / 13,170.49-19,756.64-3,810.13

Finding the Fourth Proportional to 13,170.49, 19,756.64 and 3,810.13

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Solution

The fourth proportional to 13,170.49, 19,756.64 and 3,810.13 is: 5,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.49 : 19,756.64 = 3,810.13 : x
  2. Step 2: Convert to fraction form
    13,170.49/19,756.64 = 3,810.13/x
  3. Step 3: Cross multiply
    13,170.49x = 19,756.64 × 3,810.13
  4. Step 4: Simplify right side
    13,170.49x = 75,275,326.90
  5. Step 5: Solve for x
    x = 75,275,326.90/13,170.49
  6. Step 6: Final answer
    x = 5,715.45

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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.