Home / 12,454.07-18,661.64-7,827.35

Finding the Fourth Proportional to 12,454.07, 18,661.64 and 7,827.35

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Solution

The fourth proportional to 12,454.07, 18,661.64 and 7,827.35 is: 11,728.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.07 : 18,661.64 = 7,827.35 : x
  2. Step 2: Convert to fraction form
    12,454.07/18,661.64 = 7,827.35/x
  3. Step 3: Cross multiply
    12,454.07x = 18,661.64 × 7,827.35
  4. Step 4: Simplify right side
    12,454.07x = 146,071,055.41
  5. Step 5: Solve for x
    x = 146,071,055.41/12,454.07
  6. Step 6: Final answer
    x = 11,728.79

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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.