Home / 10,905.06-15,049.08-6,712.50

Finding the Fourth Proportional to 10,905.06, 15,049.08 and 6,712.50

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Solution

The fourth proportional to 10,905.06, 15,049.08 and 6,712.50 is: 9,263.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.06 : 15,049.08 = 6,712.50 : x
  2. Step 2: Convert to fraction form
    10,905.06/15,049.08 = 6,712.50/x
  3. Step 3: Cross multiply
    10,905.06x = 15,049.08 × 6,712.50
  4. Step 4: Simplify right side
    10,905.06x = 101,016,949.50
  5. Step 5: Solve for x
    x = 101,016,949.50/10,905.06
  6. Step 6: Final answer
    x = 9,263.31

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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.