Home / 13,309.13-19,963.70-4,075.13

Finding the Fourth Proportional to 13,309.13, 19,963.70 and 4,075.13

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Solution

The fourth proportional to 13,309.13, 19,963.70 and 4,075.13 is: 6,112.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.13 : 19,963.70 = 4,075.13 : x
  2. Step 2: Convert to fraction form
    13,309.13/19,963.70 = 4,075.13/x
  3. Step 3: Cross multiply
    13,309.13x = 19,963.70 × 4,075.13
  4. Step 4: Simplify right side
    13,309.13x = 81,354,672.78
  5. Step 5: Solve for x
    x = 81,354,672.78/13,309.13
  6. Step 6: Final answer
    x = 6,112.70

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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.