Home / 13,328.84-18,394.03-7,360.15

Finding the Fourth Proportional to 13,328.84, 18,394.03 and 7,360.15

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Solution

The fourth proportional to 13,328.84, 18,394.03 and 7,360.15 is: 10,157.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.84 : 18,394.03 = 7,360.15 : x
  2. Step 2: Convert to fraction form
    13,328.84/18,394.03 = 7,360.15/x
  3. Step 3: Cross multiply
    13,328.84x = 18,394.03 × 7,360.15
  4. Step 4: Simplify right side
    13,328.84x = 135,382,819.90
  5. Step 5: Solve for x
    x = 135,382,819.90/13,328.84
  6. Step 6: Final answer
    x = 10,157.13

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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.