Home / 13,269.75-18,312.33-7,301.26

Finding the Fourth Proportional to 13,269.75, 18,312.33 and 7,301.26

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Solution

The fourth proportional to 13,269.75, 18,312.33 and 7,301.26 is: 10,075.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.75 : 18,312.33 = 7,301.26 : x
  2. Step 2: Convert to fraction form
    13,269.75/18,312.33 = 7,301.26/x
  3. Step 3: Cross multiply
    13,269.75x = 18,312.33 × 7,301.26
  4. Step 4: Simplify right side
    13,269.75x = 133,703,082.54
  5. Step 5: Solve for x
    x = 133,703,082.54/13,269.75
  6. Step 6: Final answer
    x = 10,075.78

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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.