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Finding the Fourth Proportional to 18,258.76, 27,394.73 and 6,415.79

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Solution

The fourth proportional to 18,258.76, 27,394.73 and 6,415.79 is: 9,626.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.76 : 27,394.73 = 6,415.79 : x
  2. Step 2: Convert to fraction form
    18,258.76/27,394.73 = 6,415.79/x
  3. Step 3: Cross multiply
    18,258.76x = 27,394.73 × 6,415.79
  4. Step 4: Simplify right side
    18,258.76x = 175,758,802.71
  5. Step 5: Solve for x
    x = 175,758,802.71/18,258.76
  6. Step 6: Final answer
    x = 9,626.00

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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.