Home / 11,243.12-15,501.06-9,219.11

Finding the Fourth Proportional to 11,243.12, 15,501.06 and 9,219.11

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Solution

The fourth proportional to 11,243.12, 15,501.06 and 9,219.11 is: 12,710.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.12 : 15,501.06 = 9,219.11 : x
  2. Step 2: Convert to fraction form
    11,243.12/15,501.06 = 9,219.11/x
  3. Step 3: Cross multiply
    11,243.12x = 15,501.06 × 9,219.11
  4. Step 4: Simplify right side
    11,243.12x = 142,905,899.75
  5. Step 5: Solve for x
    x = 142,905,899.75/11,243.12
  6. Step 6: Final answer
    x = 12,710.53

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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.