Home / 13,207.07-18,226.28-7,238.95

Finding the Fourth Proportional to 13,207.07, 18,226.28 and 7,238.95

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Solution

The fourth proportional to 13,207.07, 18,226.28 and 7,238.95 is: 9,990.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.07 : 18,226.28 = 7,238.95 : x
  2. Step 2: Convert to fraction form
    13,207.07/18,226.28 = 7,238.95/x
  3. Step 3: Cross multiply
    13,207.07x = 18,226.28 × 7,238.95
  4. Step 4: Simplify right side
    13,207.07x = 131,939,129.61
  5. Step 5: Solve for x
    x = 131,939,129.61/13,207.07
  6. Step 6: Final answer
    x = 9,990.04

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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.