Home / 13,055.84-18,019.20-7,393.12

Finding the Fourth Proportional to 13,055.84, 18,019.20 and 7,393.12

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Solution

The fourth proportional to 13,055.84, 18,019.20 and 7,393.12 is: 10,203.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.84 : 18,019.20 = 7,393.12 : x
  2. Step 2: Convert to fraction form
    13,055.84/18,019.20 = 7,393.12/x
  3. Step 3: Cross multiply
    13,055.84x = 18,019.20 × 7,393.12
  4. Step 4: Simplify right side
    13,055.84x = 133,218,107.90
  5. Step 5: Solve for x
    x = 133,218,107.90/13,055.84
  6. Step 6: Final answer
    x = 10,203.72

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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.