Home / 13,178.16-18,204.84-10,522.08

Finding the Fourth Proportional to 13,178.16, 18,204.84 and 10,522.08

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Solution

The fourth proportional to 13,178.16, 18,204.84 and 10,522.08 is: 14,535.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178.16 : 18,204.84 = 10,522.08 : x
  2. Step 2: Convert to fraction form
    13,178.16/18,204.84 = 10,522.08/x
  3. Step 3: Cross multiply
    13,178.16x = 18,204.84 × 10,522.08
  4. Step 4: Simplify right side
    13,178.16x = 191,552,782.87
  5. Step 5: Solve for x
    x = 191,552,782.87/13,178.16
  6. Step 6: Final answer
    x = 14,535.62

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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.