Home / 13,258.06-18,296.35-7,289.98

Finding the Fourth Proportional to 13,258.06, 18,296.35 and 7,289.98

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Solution

The fourth proportional to 13,258.06, 18,296.35 and 7,289.98 is: 10,060.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.06 : 18,296.35 = 7,289.98 : x
  2. Step 2: Convert to fraction form
    13,258.06/18,296.35 = 7,289.98/x
  3. Step 3: Cross multiply
    13,258.06x = 18,296.35 × 7,289.98
  4. Step 4: Simplify right side
    13,258.06x = 133,379,961.61
  5. Step 5: Solve for x
    x = 133,379,961.61/13,258.06
  6. Step 6: Final answer
    x = 10,060.29

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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.