Home / 11,349.08-15,657.43-7,040.18

Finding the Fourth Proportional to 11,349.08, 15,657.43 and 7,040.18

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Solution

The fourth proportional to 11,349.08, 15,657.43 and 7,040.18 is: 9,712.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,349.08 : 15,657.43 = 7,040.18 : x
  2. Step 2: Convert to fraction form
    11,349.08/15,657.43 = 7,040.18/x
  3. Step 3: Cross multiply
    11,349.08x = 15,657.43 × 7,040.18
  4. Step 4: Simplify right side
    11,349.08x = 110,231,012.05
  5. Step 5: Solve for x
    x = 110,231,012.05/11,349.08
  6. Step 6: Final answer
    x = 9,712.78

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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.