Home / 12,278.21-18,426.59-9,842.43

Finding the Fourth Proportional to 12,278.21, 18,426.59 and 9,842.43

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Solution

The fourth proportional to 12,278.21, 18,426.59 and 9,842.43 is: 14,771.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.21 : 18,426.59 = 9,842.43 : x
  2. Step 2: Convert to fraction form
    12,278.21/18,426.59 = 9,842.43/x
  3. Step 3: Cross multiply
    12,278.21x = 18,426.59 × 9,842.43
  4. Step 4: Simplify right side
    12,278.21x = 181,362,373.00
  5. Step 5: Solve for x
    x = 181,362,373.00/12,278.21
  6. Step 6: Final answer
    x = 14,771.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.