Home / 11,848.40-17,772.60-8,315.60

Finding the Fourth Proportional to 11,848.40, 17,772.60 and 8,315.60

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Solution

The fourth proportional to 11,848.40, 17,772.60 and 8,315.60 is: 12,473.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,848.40 : 17,772.60 = 8,315.60 : x
  2. Step 2: Convert to fraction form
    11,848.40/17,772.60 = 8,315.60/x
  3. Step 3: Cross multiply
    11,848.40x = 17,772.60 × 8,315.60
  4. Step 4: Simplify right side
    11,848.40x = 147,789,832.56
  5. Step 5: Solve for x
    x = 147,789,832.56/11,848.40
  6. Step 6: Final answer
    x = 12,473.40

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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.