Home / 13,269.49-18,311.87-7,301.36

Finding the Fourth Proportional to 13,269.49, 18,311.87 and 7,301.36

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Solution

The fourth proportional to 13,269.49, 18,311.87 and 7,301.36 is: 10,075.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.49 : 18,311.87 = 7,301.36 : x
  2. Step 2: Convert to fraction form
    13,269.49/18,311.87 = 7,301.36/x
  3. Step 3: Cross multiply
    13,269.49x = 18,311.87 × 7,301.36
  4. Step 4: Simplify right side
    13,269.49x = 133,701,619.18
  5. Step 5: Solve for x
    x = 133,701,619.18/13,269.49
  6. Step 6: Final answer
    x = 10,075.87

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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.