Home / 13,236.06-18,264.40-7,930.74

Finding the Fourth Proportional to 13,236.06, 18,264.40 and 7,930.74

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Solution

The fourth proportional to 13,236.06, 18,264.40 and 7,930.74 is: 10,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.06 : 18,264.40 = 7,930.74 : x
  2. Step 2: Convert to fraction form
    13,236.06/18,264.40 = 7,930.74/x
  3. Step 3: Cross multiply
    13,236.06x = 18,264.40 × 7,930.74
  4. Step 4: Simplify right side
    13,236.06x = 144,850,207.66
  5. Step 5: Solve for x
    x = 144,850,207.66/13,236.06
  6. Step 6: Final answer
    x = 10,943.60

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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.