Home / 14,972.40-20,661.89-8,258.45

Finding the Fourth Proportional to 14,972.40, 20,661.89 and 8,258.45

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Solution

The fourth proportional to 14,972.40, 20,661.89 and 8,258.45 is: 11,396.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,972.40 : 20,661.89 = 8,258.45 : x
  2. Step 2: Convert to fraction form
    14,972.40/20,661.89 = 8,258.45/x
  3. Step 3: Cross multiply
    14,972.40x = 20,661.89 × 8,258.45
  4. Step 4: Simplify right side
    14,972.40x = 170,635,040.87
  5. Step 5: Solve for x
    x = 170,635,040.87/14,972.40
  6. Step 6: Final answer
    x = 11,396.64

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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.