Home / 13,247.40-19,838.70-9,942.60

Finding the Fourth Proportional to 13,247.40, 19,838.70 and 9,942.60

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Solution

The fourth proportional to 13,247.40, 19,838.70 and 9,942.60 is: 14,889.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.40 : 19,838.70 = 9,942.60 : x
  2. Step 2: Convert to fraction form
    13,247.40/19,838.70 = 9,942.60/x
  3. Step 3: Cross multiply
    13,247.40x = 19,838.70 × 9,942.60
  4. Step 4: Simplify right side
    13,247.40x = 197,248,258.62
  5. Step 5: Solve for x
    x = 197,248,258.62/13,247.40
  6. Step 6: Final answer
    x = 14,889.58

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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.