Home / 13,278.04-18,323.85-7,310.11

Finding the Fourth Proportional to 13,278.04, 18,323.85 and 7,310.11

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Solution

The fourth proportional to 13,278.04, 18,323.85 and 7,310.11 is: 10,088.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.04 : 18,323.85 = 7,310.11 : x
  2. Step 2: Convert to fraction form
    13,278.04/18,323.85 = 7,310.11/x
  3. Step 3: Cross multiply
    13,278.04x = 18,323.85 × 7,310.11
  4. Step 4: Simplify right side
    13,278.04x = 133,949,359.12
  5. Step 5: Solve for x
    x = 133,949,359.12/13,278.04
  6. Step 6: Final answer
    x = 10,088.04

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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.