Home / 11,311.66-15,617.19-7,285.51

Finding the Fourth Proportional to 11,311.66, 15,617.19 and 7,285.51

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Solution

The fourth proportional to 11,311.66, 15,617.19 and 7,285.51 is: 10,058.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.66 : 15,617.19 = 7,285.51 : x
  2. Step 2: Convert to fraction form
    11,311.66/15,617.19 = 7,285.51/x
  3. Step 3: Cross multiply
    11,311.66x = 15,617.19 × 7,285.51
  4. Step 4: Simplify right side
    11,311.66x = 113,779,193.92
  5. Step 5: Solve for x
    x = 113,779,193.92/11,311.66
  6. Step 6: Final answer
    x = 10,058.58

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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.